Strange 'stop following thread' bug

[Alice Margatroid]

So, when I click the X to stop following threads tonight, I've been getting a pop-up that looks something like this.

Sometimes the thread becomes un-followed when I click okay, sometimes it doesn't. But mostly that is a very scary looking error message. :P

Potentially relevant specs:
- Browser: Chrome, latest update
- OS: Windows 7 x64
- No too many Chrome add-ons, and none that should do anything strange like this (i.e. no Greasemonkey or whatever).

EDIT: After testing on a couple of random other threads, it looks like it's happening every time I try to stop following a thread, and it un-follows as normal (with the usual quirks when in 'Focus' mode and viewing multiple threads in separate tabs, etc.)

[Papa-DRB]

Yea, me too.

Windows Vista Home Premium (up to date)
FireFox 19.0.2

-- david

[Kyrand]

Ironically, happened to me the first time when un-watching this thread.

Windows XP
IE 8
-- At work, so no extra add-ons or mods.

[Gary Teter]

We're in the middle of refactoring a bunch of code related to hiding threads, clearing "x new" etc. and I guess we haven't finished just yet. This should be fixed soonish.