I don't think this needs to be kept confidential. If anyone intends to cheat, they can just install a mod which was made for that purpose instead of using a bug in one which was not.
Alright then.
1. To reproduce this, you need to be on a multiplayer server, and be booted to the server list screen for "server restarting." or something similar.
2. View that game in the replay editor, and skip to the end
3. You will be booted to the multiplayer list.
4. Select any server, bam.