[FIXED] Setting initial min on dmap caused subtle bugs with dmap. #4631
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…nup. Signed-off-by: Derek Collison <derek@nats.io>
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Under heavy load with max msgs per subject of 1 the dmap, when considered empty and resetting the initial min, could cause lookup misses that would lead to excess messages in a stream and longer restore issues.
Signed-off-by: Derek Collison derek@nats.io