1 files changed, 4 insertions, 6 deletions
diff --git a/src/client/views/collections/collectionSchema/CollectionSchemaView.tsx b/src/client/views/collections/collectionSchema/CollectionSchemaView.tsx
index 029d39f88..9a00595f9 100644
--- a/src/client/views/collections/collectionSchema/CollectionSchemaView.tsx
+++ b/src/client/views/collections/collectionSchema/CollectionSchemaView.tsx
@@ -68,16 +68,16 @@ export class CollectionSchemaView extends CollectionSubView() {
     @observable _menuKeys: string[] = [];
     @observable _rowEles: ObservableMap = new ObservableMap<Doc, HTMLDivElement>();
     @observable _colEles: HTMLDivElement[] = [];
-    @observable _displayColumnWidths: number[] | undefined;
-    @observable _columnMenuIndex: number | undefined;
+    @observable _displayColumnWidths: number[] | undefined = undefined;
+    @observable _columnMenuIndex: number | undefined = undefined;
     @observable _newFieldWarning: string = '';
     @observable _makeNewField: boolean = false;
     @observable _newFieldDefault: any = 0;
     @observable _newFieldType: ColumnType = ColumnType.Number;
     @observable _menuValue: string = '';
-    @observable _filterColumnIndex: number | undefined;
+    @observable _filterColumnIndex: number | undefined = undefined;
     @observable _filterSearchValue: string = '';
-    @observable _selectedCell: [Doc, number] | undefined;
+    @observable _selectedCell: [Doc, number] | undefined = undefined;
 
     // target HTMLelement portal for showing a popup menu to edit cell values.
     public get MenuTarget() {
@@ -437,7 +437,6 @@ export class CollectionSchemaView extends CollectionSubView() {
 
     setDropIndex = (index: number) => (this._closestDropIndex = index);
 
-    @action
     onInternalDrop = (e: Event, de: DragManager.DropEvent) => {
         if (de.complete.columnDragData) {
             const mouseX = this.props.ScreenToLocalTransform().transformPoint(de.x, de.y)[0];
@@ -473,7 +472,6 @@ export class CollectionSchemaView extends CollectionSubView() {
         return false;
     };
 
-    @action
     onExternalDrop = async (e: React.DragEvent): Promise<void> => {
         super.onExternalDrop(e, {}, undoBatch(action(docus => docus.map((doc: Doc) => this.addDocument(doc)))));
     };