prevent sliod from enqueuing multiple replications for the same bmap simultaneously, which can happen without the current replication protocol.
prevent sliod from enqueuing multiple replications for the same bmap
simultaneously, which can happen without the current replication protocol.


git-svn-id: ae92b08b608af1c8cefa3e10d2325ea527204e07@9654 3eda493b-6a19-0410-b2e0-ec8ea4dd8fda

pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable