Comment 8 for bug 607171

I may have found a solution. I had this problem in my test environment where I simply copy in all modules from extra-addons. The module "use_control" is one of them.

What I do not know or understand is what installed it because I cannot recall installing it. (Is it possible that it installs itself it if it is available in the addons path?)

Anyway, I deleted the module from addons in the server, restarted and in the database(s) where it was installed I un-installed it. And in future, do not have this module in addons.

An now everything is working fine.
I shall appreciate any comments if I am possibly digging a hole for myself with this solution.