I am working on a site which uses someones custom module which makes some modifications on the user account page as well as his profile pages.
On this site, I registered myself as a user and logged in and found that I was assigned to all roles, even administrator. When I tried unclicking the checkboxes on the user page to unassign roles, it didn't work, the roles stayed the same. I tried this while logged in as the user himself and also as the admin.
What types of things could be causing this issue? Where should I look?