fix microsoft#196644

Author: meganrogge

src/vs/workbench/contrib/accessibility/browser/accessibleView.ts

@@ -505,6 +505,7 @@ export class AccessibleView extends Disposable {
 			e.stopPropagation();
 			this._contextViewService.hideContextView();
 			this._updateContextKeys(provider, false);
+			this._lastProvider = undefined;
 		};
 		const disposableStore = new DisposableStore();
 		disposableStore.add(this._editorWidget.onKeyDown((e) => {