Blank grants reset on permission rebuild

If you uncheck all boxes on the grant tab, permissions work fine. In my case, I'd use this to mean "Administrators only." The problem with this is when permissions are rebuilt using Drupal's built-in tool, these admin-only pages are reset to the default for the content type since the backend stores it as blank.

The fix is to add in the Administrators role even though they always have access anyways, and the attached patch. It checks if the form is blank, and if so will load the content type defaults.