Settings: Privacy settings not saved

[tehron]

Privacy settings are always set to "show". If you change them to "hide" and save, you get a success message "Privacy settings updated", but the state on that page is "show" again.
Also doesn't seem to be a display bug only, because "online status" is still shown e.g.

EDIT: Tried with account "tehbot" where it is as described. Works fine with account "tehron".