Describe the bug
Sometimes as master looter after voting I notice, that I cannot unvote. This always affects all items I have voted on. The button only allows me to vote again which results in two votes from me for that person (actually shows my name twice in the tooltip) and after that I can unvote and the 1st vote is still counted but no longer shows my name in the tooltip.

To Reproduce
Seems random, have no way to reproduce.

Error message
No error message.

RCLootCouncil.zip

I'm afraid I can't really figure out how that can happen. Only thing I can think off is if you press the button twice really fast as you seem to have some latency (most of your votes takes ~1 second from clicking to being received, which normally is in the millisecond range).

This definitely is not case of pressing too fast. It seems to only happen when I vote on one item, then vote on another and then want to change the vote on the fist item.