fix(campaign-ui): make discard restore server state

webui/src/features/campaigns/components/CampaignDraftPageScaffold.tsx

@@ -50,7 +50,7 @@ export default function CampaignDraftPageScaffold({
           <VersionLine version={version} versions={versions} status={saveState} />
         </div>
         <div className="button-row compact-actions">
-          <Button onClick={onReload} disabled={loading}>i18n:govoplan-campaign.reload.cce71553</Button>
+          <Button onClick={onReload} disabled={loading}>Discard</Button>
           <Button variant="primary" onClick={onSave} disabled={!dirty || locked || !draft}>i18n:govoplan-campaign.save.efc007a3</Button>
         </div>
       </div>

webui/src/features/campaigns/hooks/useCampaignDraftEditor.ts

@@ -12,7 +12,7 @@ type UseCampaignDraftEditorOptions = {
   campaignId: string;
   version: CampaignVersionDetail | null;
   locked: boolean;
-  reload: () => Promise<void>;
+  reload: (options?: {force?: boolean;}) => Promise<void>;
   setError: (message: string) => void;
   currentStep: StepValue;
   currentFlow?: string;
@@ -124,12 +124,25 @@ export function useCampaignDraftEditor({
     }
   }, [campaignId, currentFlow, currentStep, draft, extraPayload, isComplete, locked, onSaved, reload, setError, settings, version, workflowState]);
 
+  const discardDraft = useCallback(async () => {
+    if (version) {
+      const initialDraft = ensureCampaignDraft(version);
+      const loadedDraft = transformLoadedDraftRef.current?.(version, initialDraft) ?? initialDraft;
+      setDraft(loadedDraft);
+      setDirty(false);
+      setLocalError("");
+      setSaveState(loadedLabelRef.current(version));
+      onLoadedRef.current?.(version, loadedDraft);
+    }
+    await reload({ force: true });
+  }, [reload, version]);
+
   const unsavedRegistration = useMemo(() => dirty && !locked ? {
     title: unsavedTitle,
     message: unsavedMessage,
     onSave: () => saveDraft("manual"),
-    onDiscard: () => setDirty(false)
-  } : null, [dirty, locked, saveDraft, unsavedMessage, unsavedTitle]);
+    onDiscard: () => { void discardDraft(); }
+  } : null, [dirty, discardDraft, locked, saveDraft, unsavedMessage, unsavedTitle]);
 
   useRegisterCampaignUnsavedChanges(unsavedRegistration);
 
@@ -145,6 +158,7 @@ export function useCampaignDraftEditor({
     setLocalError,
     patch,
     markDirty,
+    discardDraft,
     saveDraft
   };
-}
+}

webui/src/features/campaigns/hooks/useCampaignWorkspaceData.ts

@@ -52,14 +52,16 @@ export function useCampaignWorkspaceData(
     [campaignId, selectedVersionId, includeCurrentVersion, includeSummary, includeVersions, settings.apiBaseUrl, settings.apiKey, settings.accessToken]
   );
 
-  const reload = useCallback(async () => {
+  const reload = useCallback(async (options?: {force?: boolean;}) => {
     if (!campaignId) return;
+    const force = options?.force === true;
     setLoading(true);
     setError("");
     try {
       const shouldLoadVersions = includeCurrentVersion || includeVersions;
-      let nextWatermark = getDeltaWatermark(queryKey);
-      let merged: CampaignWorkspaceData = dataRef.current;
+      if (force) resetDeltaWatermark(queryKey);
+      let nextWatermark = force ? null : getDeltaWatermark(queryKey);
+      let merged: CampaignWorkspaceData = force ? initialData : dataRef.current;
       let hasMore = false;
       do {
         const response = await getCampaignWorkspaceDelta(settings, campaignId, {