Submitted by itsmeSTYJ
The require statement in updateTotalFrozen and batchUpdateTotalFrozen to check that totalStaked  totalFrozen should be done both before and after _updateTotalFrozen is called to ensure that totalStake is still  totalFrozen. This will serve as a sanity check to ensure that the integrity of the system is not compromised.
kingjacob (Union) confirmed
GalloDaSballo (judge) commented:
