Server restart during active boss fight - boss arena does not reset

If the server restarts during an active boss fight, it ends the fight (once the server restarts the fight is no longer active), but does NOT reset the boss arena schem to the "default" one with the altar. This means that no one can use boss eggs. After the next periodic fight started, the boss arena reverted to normal. The boss arena should revert to "default" on server restart. In addition, boss fights starting within ~15 mins of server restart should possibly be disabled (as the server restart ends the fight)