Fix layer search cursor and refresh project revisions

Components/Pages/Home.razor

@@ -374,6 +374,14 @@
                                     }
                                 </select>
                             </label>
+                            @if (!string.IsNullOrWhiteSpace(SelectedProjectId) && ProjectVersions.Count == 0)
+                            {
+                                <small class="field-help">Non ci sono ancora revisioni: la prima viene creata quando salvi nuovamente un progetto già esistente.</small>
+                            }
+                            else if (ProjectVersions.Count > 0)
+                            {
+                                <small class="field-help">@ProjectVersions.Count revisioni disponibili, ordinate dalla più recente.</small>
+                            }
                             <div class="button-row">
                                 <button class="secondary-command" @onclick="LoadProjectVersion" disabled="@(string.IsNullOrWhiteSpace(SelectedVersionId))">Apri revisione</button>
                                 <button class="secondary-command" @onclick="CompareProjectVersion" disabled="@(string.IsNullOrWhiteSpace(SelectedVersionId))">Confronta</button>
@@ -905,6 +913,7 @@
             await JS.InvokeVoidAsync("lmeMap.clearLegacyProjectSnapshot");
             await RefreshProjectsAsync();
             SelectedProjectId = migrated.Id;
+            await RefreshProjectVersionsAsync(true);
             await InvokeAsync(StateHasChanged);
         }
         catch
@@ -1366,6 +1375,7 @@
             {
                 SelectedProjectId = string.Empty;
             }
+            await RefreshProjectVersionsAsync();
             ProjectArchiveMessage = Projects.Count == 0
                 ? "Nessun progetto salvato."
                 : $"{Projects.Count} {(Projects.Count == 1 ? "progetto salvato" : "progetti salvati")} nell'archivio interno.";
@@ -1380,10 +1390,18 @@
     {
         SelectedProjectId = args.Value?.ToString() ?? string.Empty;
         ProjectFolder = SelectedProject?.Folder ?? string.Empty;
-        SelectedVersionId = string.Empty;
+        await RefreshProjectVersionsAsync(true);
+    }
+
+    private async Task RefreshProjectVersionsAsync(bool resetSelection = false)
+    {
         ProjectVersions = string.IsNullOrWhiteSpace(SelectedProjectId)
             ? []
             : await ProjectStorageService.GetVersionsAsync(SelectedProjectId);
+        if (resetSelection || ProjectVersions.All(version => version.Id != SelectedVersionId))
+        {
+            SelectedVersionId = string.Empty;
+        }
     }
 
     private Task UndoMapChange() => JS.InvokeVoidAsync("lmeMap.undoMapChange").AsTask();
@@ -1405,6 +1423,7 @@
         await RefreshProjectsAsync();
         SelectedProjectId = copy.Id;
         ProjectFolder = copy.Folder;
+        await RefreshProjectVersionsAsync(true);
         await JS.InvokeVoidAsync("lmeMap.showInfo", $"Progetto duplicato: {copy.Name}.");
     }
 
@@ -1424,6 +1443,7 @@
             var renamed = await ProjectStorageService.RenameAsync(project.Id, requestedName);
             await RefreshProjectsAsync();
             SelectedProjectId = renamed.Id;
+            await RefreshProjectVersionsAsync();
             NewProjectName = renamed.Name;
             if (!HasUnsavedChanges)
             {
@@ -1488,6 +1508,7 @@
         var imported = await ProjectStorageService.ImportProjectAsync(path);
         await RefreshProjectsAsync();
         SelectedProjectId = imported.Id;
+        await RefreshProjectVersionsAsync(true);
         await JS.InvokeVoidAsync("lmeMap.showInfo", $"Progetto importato: {imported.Name}.");
     }
 
@@ -1588,6 +1609,7 @@
                 existing?.Id);
             await RefreshProjectsAsync();
             SelectedProjectId = saved.Id;
+            await RefreshProjectVersionsAsync();
             NewProjectName = saved.Name;
             await JS.InvokeVoidAsync("lmeMap.setProjectReadOnly", false);
             await JS.InvokeVoidAsync("lmeMap.markProjectSaved");