Reproduce:

1. Open Security app 
2. Add new folder
3. Add new user in just created folder
4. Click on Publish button on the sidebar
5. App crashed, and check the log

Problem found on Security app and Site Definition app.

For more information:

• The Pages app disables the Publish button if the parent folder was unpublished.
• Meanwhile, the Stories app allows user to click Publish, but the error message displays on the screen then, and app is still working.
• The instance is broken with this crash, restarting Tomcat does not help.
  • Need to kill it before restarting. Maybe because when the instance get in this lock state, it can’t release repository lock so it can’t be stopped normally