diff --git a/.gitignore b/.gitignore
index cf68d44..5588837 100644
--- a/.gitignore
+++ b/.gitignore
@@ -420,3 +420,4 @@ bin-release/
 # should NOT be excluded as they contain compiler settings and other important
 # information for Eclipse / Flash Builder.
 
+.fuse_*
\ No newline at end of file
diff --git a/multi-seal-mail-webui.tar.gz b/multi-seal-mail-webui.tar.gz
deleted file mode 100644
index df7878b..0000000
Binary files a/multi-seal-mail-webui.tar.gz and /dev/null differ
diff --git a/multisealmail-webui-reload-preview-patch.zip b/multisealmail-webui-reload-preview-patch.zip
deleted file mode 100644
index af93aab..0000000
Binary files a/multisealmail-webui-reload-preview-patch.zip and /dev/null differ
diff --git a/multisealmail-webui-reload-streamline-patch.zip b/multisealmail-webui-reload-streamline-patch.zip
deleted file mode 100644
index 4a9507e..0000000
Binary files a/multisealmail-webui-reload-streamline-patch.zip and /dev/null differ
diff --git a/src/features/campaigns/AttachmentsDataPage.tsx b/src/features/campaigns/AttachmentsDataPage.tsx
index f68beee..bfb9656 100644
--- a/src/features/campaigns/AttachmentsDataPage.tsx
+++ b/src/features/campaigns/AttachmentsDataPage.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useRef, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
 import { Link } from "react-router-dom";
 import type { ApiSettings } from "../../types";
 import Button from "../../components/Button";
@@ -22,7 +22,6 @@ export default function AttachmentsDataPage({ settings, campaignId }: { settings
   const [dirty, setDirty] = useState(false);
   const [saveState, setSaveState] = useState("Loaded");
   const [localError, setLocalError] = useState("");
-  const loadedVersionId = useRef<string | null>(null);
 
   const version = data.currentVersion;
   const locked = isAuditLockedVersion(version);
@@ -34,8 +33,6 @@ export default function AttachmentsDataPage({ settings, campaignId }: { settings
 
   useEffect(() => {
     if (!version) return;
-    if (loadedVersionId.current === version.id) return;
-    loadedVersionId.current = version.id;
     setDraft(ensureCampaignDraft(version));
     setDirty(false);
     setSaveState(version.autosaved_at ? `Loaded saved draft ${formatDateTime(version.autosaved_at)}` : "Loaded");
diff --git a/src/features/campaigns/CampaignDataPage.tsx b/src/features/campaigns/CampaignDataPage.tsx
index c19ef8b..12c8a99 100644
--- a/src/features/campaigns/CampaignDataPage.tsx
+++ b/src/features/campaigns/CampaignDataPage.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useRef, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
 import { Link } from "react-router-dom";
 import type { ApiSettings } from "../../types";
 import Button from "../../components/Button";
@@ -22,7 +22,6 @@ export default function CampaignDataPage({ settings, campaignId }: { settings: A
   const [dirty, setDirty] = useState(false);
   const [saveState, setSaveState] = useState("Loaded");
   const [localError, setLocalError] = useState("");
-  const loadedVersionId = useRef<string | null>(null);
 
   const version = data.currentVersion;
   const locked = isAuditLockedVersion(version);
@@ -35,8 +34,6 @@ export default function CampaignDataPage({ settings, campaignId }: { settings: A
 
   useEffect(() => {
     if (!version) return;
-    if (loadedVersionId.current === version.id) return;
-    loadedVersionId.current = version.id;
     setDraft(ensureCampaignDraft(version));
     setDirty(false);
     setSaveState(version.autosaved_at ? `Loaded saved draft ${formatDateTime(version.autosaved_at)}` : "Loaded");
diff --git a/src/features/campaigns/CampaignOverviewPage.tsx b/src/features/campaigns/CampaignOverviewPage.tsx
index 0cea11e..7afd638 100644
--- a/src/features/campaigns/CampaignOverviewPage.tsx
+++ b/src/features/campaigns/CampaignOverviewPage.tsx
@@ -22,7 +22,7 @@ import { addressesFromValue } from "../../utils/emailAddresses";
 
 export default function CampaignOverviewPage({ settings, campaignId }: { settings: ApiSettings; campaignId: string }) {
   const navigate = useNavigate();
-  const { data, loading, error, reload, setError } = useCampaignWorkspaceData(settings, campaignId);
+  const { data, loading, error, reload, setError } = useCampaignWorkspaceData(settings, campaignId, { includeSummary: true });
   const [copying, setCopying] = useState(false);
   const [locking, setLocking] = useState(false);
   const [message, setMessage] = useState("");
diff --git a/src/features/campaigns/CampaignReportPage.tsx b/src/features/campaigns/CampaignReportPage.tsx
index 22c91b5..5eee7e1 100644
--- a/src/features/campaigns/CampaignReportPage.tsx
+++ b/src/features/campaigns/CampaignReportPage.tsx
@@ -6,7 +6,7 @@ import { useCampaignWorkspaceData } from "./hooks/useCampaignWorkspaceData";
 import { formatDateTime } from "./utils/campaignView";
 
 export default function CampaignReportPage({ settings, campaignId }: { settings: ApiSettings; campaignId: string }) {
-  const { data, loading, error, reload } = useCampaignWorkspaceData(settings, campaignId);
+  const { data, loading, error, reload } = useCampaignWorkspaceData(settings, campaignId, { includeCurrentVersion: false, includeSummary: true });
   const cards = data.summary?.cards;
 
   return (
diff --git a/src/features/campaigns/GlobalSettingsPage.tsx b/src/features/campaigns/GlobalSettingsPage.tsx
index e2e3997..98819e9 100644
--- a/src/features/campaigns/GlobalSettingsPage.tsx
+++ b/src/features/campaigns/GlobalSettingsPage.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from "react";
+import { useEffect, useState } from "react";
 import type { ApiSettings } from "../../types";
 import Button from "../../components/Button";
 import Card from "../../components/Card";
@@ -22,7 +22,6 @@ export default function GlobalSettingsPage({ settings, campaignId }: { settings:
   const [dirty, setDirty] = useState(false);
   const [saveState, setSaveState] = useState("Loaded");
   const [localError, setLocalError] = useState("");
-  const loadedVersionId = useRef<string | null>(null);
 
   const version = data.currentVersion;
   const locked = isAuditLockedVersion(version);
@@ -36,8 +35,6 @@ export default function GlobalSettingsPage({ settings, campaignId }: { settings:
 
   useEffect(() => {
     if (!version) return;
-    if (loadedVersionId.current === version.id) return;
-    loadedVersionId.current = version.id;
     setDraft(ensureCampaignDraft(version));
     setEditorState(cloneJson(version.editor_state ?? {}));
     setDirty(false);
diff --git a/src/features/campaigns/MailSettingsPage.tsx b/src/features/campaigns/MailSettingsPage.tsx
index eb06af8..0a18b69 100644
--- a/src/features/campaigns/MailSettingsPage.tsx
+++ b/src/features/campaigns/MailSettingsPage.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from "react";
+import { useEffect, useState } from "react";
 import type { ApiSettings } from "../../types";
 import Button from "../../components/Button";
 import Card from "../../components/Card";
@@ -24,7 +24,6 @@ export default function MailSettingsPage({ settings, campaignId }: { settings: A
   const [imapTestResult, setImapTestResult] = useState<MailConnectionTestResponse | null>(null);
   const [folderResult, setFolderResult] = useState<MailImapFolderListResponse | null>(null);
   const [mailActionState, setMailActionState] = useState<"smtp" | "imap" | "folders" | null>(null);
-  const loadedVersionId = useRef<string | null>(null);
 
   const version = data.currentVersion;
   const locked = isAuditLockedVersion(version);
@@ -38,8 +37,6 @@ export default function MailSettingsPage({ settings, campaignId }: { settings: A
 
   useEffect(() => {
     if (!version) return;
-    if (loadedVersionId.current === version.id) return;
-    loadedVersionId.current = version.id;
     setDraft(ensureCampaignDraft(version));
     setDirty(false);
     setSaveState(version.autosaved_at ? `Loaded saved draft ${formatDateTime(version.autosaved_at)}` : "Loaded");
diff --git a/src/features/campaigns/RecipientDataPage.tsx b/src/features/campaigns/RecipientDataPage.tsx
index 95a493a..471ffd8 100644
--- a/src/features/campaigns/RecipientDataPage.tsx
+++ b/src/features/campaigns/RecipientDataPage.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useRef, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
 import { Link } from "react-router-dom";
 import type { ApiSettings } from "../../types";
 import Button from "../../components/Button";
@@ -31,7 +31,6 @@ export default function RecipientDataPage({ settings, campaignId }: { settings:
   const [dirty, setDirty] = useState(false);
   const [saveState, setSaveState] = useState("Loaded");
   const [localError, setLocalError] = useState("");
-  const loadedVersionId = useRef<string | null>(null);
 
   const version = data.currentVersion;
   const locked = isAuditLockedVersion(version);
@@ -49,8 +48,6 @@ export default function RecipientDataPage({ settings, campaignId }: { settings:
 
   useEffect(() => {
     if (!version) return;
-    if (loadedVersionId.current === version.id) return;
-    loadedVersionId.current = version.id;
     setDraft(ensureCampaignDraft(version));
     setDirty(false);
     setSaveState(version.autosaved_at ? `Loaded saved draft ${formatDateTime(version.autosaved_at)}` : "Loaded");
diff --git a/src/features/campaigns/ReviewDataPage.tsx b/src/features/campaigns/ReviewDataPage.tsx
index cb5315a..e7e3d1b 100644
--- a/src/features/campaigns/ReviewDataPage.tsx
+++ b/src/features/campaigns/ReviewDataPage.tsx
@@ -8,7 +8,7 @@ import { useCampaignWorkspaceData } from "./hooks/useCampaignWorkspaceData";
 import { asArray, asRecord, formatDateTime, stringifyPreview, summaryValue } from "./utils/campaignView";
 
 export default function ReviewDataPage({ settings, campaignId }: { settings: ApiSettings; campaignId: string }) {
-  const { data, loading, error, reload } = useCampaignWorkspaceData(settings, campaignId);
+  const { data, loading, error, reload } = useCampaignWorkspaceData(settings, campaignId, { includeSummary: true });
   const version = data.currentVersion;
   const issues = collectIssues(data.summary?.issues);
 
diff --git a/src/features/campaigns/SendDataPage.tsx b/src/features/campaigns/SendDataPage.tsx
index b297ad1..e40c580 100644
--- a/src/features/campaigns/SendDataPage.tsx
+++ b/src/features/campaigns/SendDataPage.tsx
@@ -8,7 +8,7 @@ import { useCampaignWorkspaceData } from "./hooks/useCampaignWorkspaceData";
 import { asRecord, getDeliverySection, getNestedString } from "./utils/campaignView";
 
 export default function SendDataPage({ settings, campaignId }: { settings: ApiSettings; campaignId: string }) {
-  const { data, loading, error, reload } = useCampaignWorkspaceData(settings, campaignId);
+  const { data, loading, error, reload } = useCampaignWorkspaceData(settings, campaignId, { includeSummary: true });
   const cards = data.summary?.cards;
   const delivery = getDeliverySection(data.currentVersion);
   const rateLimit = asRecord(delivery.rate_limit);
diff --git a/src/features/campaigns/TemplateDataPage.tsx b/src/features/campaigns/TemplateDataPage.tsx
index 84c143a..a79a862 100644
--- a/src/features/campaigns/TemplateDataPage.tsx
+++ b/src/features/campaigns/TemplateDataPage.tsx
@@ -474,7 +474,7 @@ function buildPreviewContext(draft: Record<string, unknown> | null, entry: Recor
     addContextValue(context, key, "local", value);
   }
   for (const [key, value] of Object.entries(entryFields)) {
-    if (canOverrideField(overridePolicy, key)) {
+    if (canOverrideField(overridePolicy, key) && hasPreviewOverrideValue(value)) {
       addContextValue(context, key, "local", value);
     }
   }
@@ -505,6 +505,12 @@ function addContextValue(context: Record<string, string>, key: string, namespace
   context[`${namespace}::${key}`] = text;
 }
 
+function hasPreviewOverrideValue(value: unknown): boolean {
+  if (value === undefined || value === null) return false;
+  if (typeof value === "string") return value.trim() !== "";
+  return true;
+}
+
 function renderPreviewText(text: string, context: Record<string, string>, ignoreEmptyFields: boolean): string {
   if (!text) return "";
   return text
diff --git a/src/features/campaigns/hooks/useCampaignWorkspaceData.ts b/src/features/campaigns/hooks/useCampaignWorkspaceData.ts
index c8f06d5..8243620 100644
--- a/src/features/campaigns/hooks/useCampaignWorkspaceData.ts
+++ b/src/features/campaigns/hooks/useCampaignWorkspaceData.ts
@@ -18,7 +18,22 @@ const initialData: CampaignWorkspaceData = {
   summary: null
 };
 
-export function useCampaignWorkspaceData(settings: ApiSettings, campaignId: string) {
+type UseCampaignWorkspaceDataOptions = {
+  includeCurrentVersion?: boolean;
+  includeSummary?: boolean;
+  includeVersions?: boolean;
+};
+
+export function useCampaignWorkspaceData(
+  settings: ApiSettings,
+  campaignId: string,
+  options: UseCampaignWorkspaceDataOptions = {}
+) {
+  const {
+    includeCurrentVersion = true,
+    includeSummary = false,
+    includeVersions = false
+  } = options;
   const [data, setData] = useState<CampaignWorkspaceData>(initialData);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState("");
@@ -28,20 +43,25 @@ export function useCampaignWorkspaceData(settings: ApiSettings, campaignId: stri
     setLoading(true);
     setError("");
     try {
-      const [campaign, versions] = await Promise.all([
-        getCampaign(settings, campaignId),
-        listCampaignVersions(settings, campaignId)
-      ]);
-      const selectedVersionId = campaign.current_version_id ?? versions[0]?.id;
+      const needsCampaign = includeCurrentVersion || includeVersions;
+      const summaryPromise = includeSummary ? getCampaignSummary(settings, campaignId) : Promise.resolve(null);
+      const campaign = needsCampaign ? await getCampaign(settings, campaignId) : null;
+      let versions: CampaignVersionListItem[] = [];
+      let selectedVersionId = campaign?.current_version_id;
+
+      if (includeVersions || (includeCurrentVersion && !selectedVersionId)) {
+        versions = await listCampaignVersions(settings, campaignId);
+        selectedVersionId = selectedVersionId ?? versions[0]?.id;
+      }
 
       const [versionResult, summaryResult] = await Promise.allSettled([
-        selectedVersionId ? getCampaignVersion(settings, campaignId, selectedVersionId) : Promise.resolve(null),
-        getCampaignSummary(settings, campaignId)
+        includeCurrentVersion && selectedVersionId ? getCampaignVersion(settings, campaignId, selectedVersionId) : Promise.resolve(null),
+        summaryPromise
       ]);
 
       setData({
         campaign,
-        versions,
+        versions: includeVersions ? versions : [],
         currentVersion: versionResult.status === "fulfilled" ? (versionResult.value as CampaignVersionDetail | null) : null,
         summary: summaryResult.status === "fulfilled" ? (summaryResult.value as CampaignSummary | null) : null
       });
@@ -51,7 +71,7 @@ export function useCampaignWorkspaceData(settings: ApiSettings, campaignId: stri
     } finally {
       setLoading(false);
     }
-  }, [settings, campaignId]);
+  }, [settings, campaignId, includeCurrentVersion, includeSummary, includeVersions]);
 
   useEffect(() => {
     reload();
diff --git a/src/features/campaigns/wizard/CreateWizard.tsx b/src/features/campaigns/wizard/CreateWizard.tsx
index 59871cb..bd2f28a 100644
--- a/src/features/campaigns/wizard/CreateWizard.tsx
+++ b/src/features/campaigns/wizard/CreateWizard.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from "react";
+import { useEffect, useState } from "react";
 import { Link } from "react-router-dom";
 import type { ApiSettings, WizardStep } from "../../../types";
 import Stepper from "../../../components/Stepper";
@@ -36,7 +36,6 @@ export default function CreateWizard({ settings, campaignId }: { settings: ApiSe
   const [saveState, setSaveState] = useState("Loading…");
   const [localError, setLocalError] = useState("");
   const [validationMessage, setValidationMessage] = useState("");
-  const loadedVersionId = useRef<string | null>(null);
   const index = steps.findIndex((s) => s.id === activeStep);
   const { data, loading, reload } = useCampaignWorkspaceData(settings, campaignId);
   const version = data.currentVersion;
@@ -44,8 +43,6 @@ export default function CreateWizard({ settings, campaignId }: { settings: ApiSe
 
   useEffect(() => {
     if (!version) return;
-    if (loadedVersionId.current === version.id) return;
-    loadedVersionId.current = version.id;
     setDraft(ensureCampaignDraft(version));
     setDirty(false);
     setSaveState(version.autosaved_at ? `Loaded saved draft ${formatDateTime(version.autosaved_at)}` : "Loaded");