Objects not getting cleaned up during server restarts

[tjensen]

I've noticed extra objects being cleaned up during the first round after a server restart. For example, in the following log excerpt, six sea chests got cleaned up even though only three should spawn at the beginning of each round:

SCRIPT       : Cleaning up objects
SCRIPT       : Finding objects
SCRIPT       : Done finding objects
SCRIPT       :  Start: 1840432
SCRIPT       :  End: 1841532
SCRIPT       :  Delta: 1100
SCRIPT       :  Objects to check: 30452
SCRIPT       : Cleaning up object SeaChest<189b34e0>
SCRIPT       : Cleaning up object SeaChest<189adc50>
SCRIPT       : Cleaning up object SeaChest<7fbd5390>
SCRIPT       : Cleaning up object SeaChest<7fbdb9c0>
SCRIPT       : Cleaning up object SeaChest<189b2070>
SCRIPT       : Cleaning up object AKM_Base<8f117600>
SCRIPT       : Cleaning up object B95<8f114720>
SCRIPT       : Cleaning up object UKAssVest_Khaki<7fbe26c0>
SCRIPT       : Cleaning up object MilitaryBelt<7fbe04b0>
SCRIPT       : Cleaning up object BDUJacket<7fbd6800>
SCRIPT       : Cleaning up object ParamedicPants_Green<7fbe5670>
SCRIPT       : Cleaning up object CombatBoots_Green<7fbe2d90>
SCRIPT       : Cleaning up object SurgicalMask<7fbdfde0>
SCRIPT       : Cleaning up object SeaChest<7fbe4fa0>
SCRIPT       : Done cleaning up objects

I thought I had persistence disabled on my server, which I expected would prevent this from happening. However, relying on the persistence server setting probably isn't the best idea, anyway. We need to make sure that objects still get cleaned up at the end of the final round before a restart.