/**
  * Removes the listener which invokes {@link #jobManagerRevisionDidChange} each time the job
  * manager has executed, undone or redone a job. Subclasses may invoke this routine to temporarily
  * stop listening to the job manager from the editor controller. Use {@link
  * AbstractPanelController#startListeningToJobManagerRevision} to re-enable job manager listening.
  */
 protected final void stopListeningToJobManagerRevision() {
   editorController.getJobManager().revisionProperty().removeListener(jobManagerRevisionListener);
 }