Arena battles are broken

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1633
Key:aberrantquerist

Round ID:

4278

Testmerges:

• Behold, a Box!
• Isthisamap
• Steel Station, a new large station for the map rotation!
• [PORT] Custom antag objectives and a lot of changeling updates
• Fixes rev wins breaking the game
• Adds storyteller logging and makes roundstart antags actually roll
• Adds better trait for no stamina stun, adds it to various things that need it.
• Adds support for antag huds to only display to players with specific hud keys
• Artifact science stuff
• Shuttle gibbing code improvements
• [PORT] gutlunch pop control (tgstation#79772) and small fix
• [DRAFT] Slime Rancher? In my space station????

Reproduction:

Ghost arena does not restart after one person wins. Player is left stuck inside, and it does not reset.

[wraith-54321]

fixed by item whitelist removal