Internal server error thrown when non-admin user sets permissions on a file to NONE then tries to refresh the permissions list

[JustinKyleJames]

When a non-admin user sets permissions on a file to NONE and then tries to refresh the screen or clicks on the permissions tab, the application returns an internal server error back to the client. This is because the user no longer has permission to read the metadata.

There is probably a better way to handle this situation.

[trel]

sounds like it should probably just 'list' the parent collection, and then recursively walk 'up' if that continues to fail.