fixes #21153

src/vs/editor/contrib/suggest/browser/suggestController.ts

@@ -167,6 +167,10 @@ export class SuggestController implements IEditorContribution {
 		}
 
 		this.model.cancel();
+
+		// The list will possibly get focus due to a mouse click
+		// so we need to get it back to the editor on the next frame.
+		setTimeout(() => this.editor.focus(), 0);
 	}
 
 	triggerSuggest(): void {

src/vs/editor/contrib/suggest/browser/suggestWidget.ts

@@ -416,8 +416,6 @@ export class SuggestWidget implements IContentWidget, IDelegate<ICompletionItem>
 		this.onDidSelectEmitter.fire(item);
 
 		alert(nls.localize('suggestionAriaAccepted', "{0}, accepted", item.suggestion.label));
-
-		this.editor.focus();
 	}
 
 	private _getSuggestionAriaAlertLabel(item: ICompletionItem): string {