Add refreshing actively opened Layers And Tags asset editor when adding tags from popup

#885

Source/Editor/CustomEditors/Editors/TagEditor.cs

@@ -257,6 +257,9 @@ namespace FlaxEditor.CustomEditors.Editors
                     var settingsObj = (LayersAndTagsSettings)settingsAsset.Instance;
                     settingsObj.Tags.Add(tagName);
                     settingsAsset.SetInstance(settingsObj);
+
+                    // Reload editor window to reflect new tag
+                    assetWindow?.RefreshAsset();
                 }
             };
             dialog.Closed += popup =>

Source/Editor/Windows/Assets/AssetEditorWindow.cs

@@ -308,6 +308,14 @@ namespace FlaxEditor.Windows.Assets
         {
         }
 
+        /// <summary>
+        /// Drops any loaded asset data and refreshes the UI state.
+        /// </summary>
+        public void RefreshAsset()
+        {
+            _isWaitingForLoaded = true;
+        }
+
         /// <summary>
         /// Reloads the asset (window will receive <see cref="OnAssetLoaded"/> or <see cref="OnAssetLoadFailed"/> events).
         /// </summary>