Players can join running matches

[64bitpandas]

Expected Behavior

If you try to join a match that is currently running, it will error out. During regular matchmaking it should not put you in any matches that are running.

Actual Behavior

You can join matches even though they are running (regular matchmaking included)

Side effect: Scoring is messed up because it creates a new entry when you rejoin.

Steps to Reproduce the Problem

1. Get a friend to create a match and start it.
2. Join the same room type.
3. You can join..

Specifications

• Browser: All
• Operating System: All

Screenshots