empty option validation for views bulk form causing issue when Action Key value 0 in dropdown

Created patch with following change

Existing :-

   $action = $form_state->getValue('action');
    if (empty($action)) {
      $form_state->setErrorByName('', $this->emptyActionMessage());
    }

Updated :-

    $action = $form_state->getValue('action');
    if (strlen($action) === 0) {
      $form_state->setErrorByName('', $this->emptyActionMessage());
    }

This doesn't seem to be a usability bug, just a bug. I am removing that tag.

Moving to 11.x development branch.

Thanks for reporting, we will also need a test case that shows this issue.

The screenshot shows the Media Bulk update plugin and the actions appear to be from a Files bulk plugin in the other screenshot?

The actions in the screenshot do not appear to come from Drupal Core. The media Bulk update plugin uses string keys as you would expect here.

If I'm overlooking something please feel free to re-open this and add steps to reproduce this with just Drupal core.