Regulation CC allows an exception hold for a "redeposited check." Generally, the idea is based on the fact that the item was debited back to the account and then the customer redeposited it.
Here, it sounds as if the officer is simply making a decision to re-clear the item without notice to the customer.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.