I suppose this is a kind of bug but it’s probably a very low priority one.
I don’t normally use the beta site, but did to set up some games to test out the chat features.
When it was my move or I was running out of time to make a move, I got an email notification to make a move or review the game when it was over, but it tells me to check
https://online-go.com/game/[gamenumber]
as opposed to
https://beta.online-go.com/game/[gamenumber]
It doesn’t really affect me much since I wasn’t really planning on playing out games on the beta site, but it did confuse me for a few minutes until I thought to check the beta site. Mainly because the number it linked was lower than 10k, whereas on the main site it’s like 25 million or something?