Buzz delay should not reset after closing chat window
Description
Currently if you buzz someone and quickly close and open chat with him again, you will be able to buzz him again at once. So, it's easy to abuse one. Buzz delay should be persistent, if possible separately for every user.
Currently if you buzz someone and quickly close and open chat with him again, you will be able to buzz him again at once. So, it's easy to abuse one. Buzz delay should be persistent, if possible separately for every user.