Fix all waiters being enumerated on connection release #9421
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What do these changes do?
#2964 changed the waiter implementation to enumerate all the waiters on release. This may be to handle a case where waiters are not properly released, however I could not find one where we should be releasing waiters for other keys when we already have the key
Are there changes in behavior for the user?
no
Is it a substantial burden for the maintainers to support this?
no