Suppose a user is approved for a refund of fines from a previous round. But before release() is settled, the user is slashed again in the current round. release() and slash() racing might occur and result in uncertain behavior:
https://github.com/code-423n4/2024-03-gitcoin/blob/6529b351cd72a858541f60c52f0e5ad0fb6f1b16/id-staking-v2/contracts/IdentityStaking.sol#L558
release() tx might revert due to slash() racing. 
In this case, RELEASER_ROLE and SLASHER_ROLE need to be coordinated to prevent random reverts. 
