@Override
    protected @NotNull InsertHandler<LookupElement> createInsertHandler(@NotNull VcsRef item) {
      return (context, item1) -> {
        mySelectedRef = (VcsRef)item1.getObject();
        ApplicationManager.getApplication().invokeLater(() -> {
          // handleInsert is called in the middle of some other code that works with editor
          // (see CodeCompletionHandlerBase.insertItem)
          // for example, scrolls editor
          // problem is that in onOk we make text field not editable
          // by some reason this is done by disposing its editor and creating a new one
          // so editor gets disposed here and CodeCompletionHandlerBase can not finish doing whatever it is doing with it
          // I counter this by invoking onOk in invokeLater
          myTextField.onOk();
        });
      };
    }
@Override
    protected @NotNull InsertHandler<LookupElement> createInsertHandler(@NotNull VcsRef item)