group@ ACE added to all ACLs after replication from FreeNAS 11 to TrueNAS Core 13

[Johnny Fartpants]

I've replicated from a FreeNAS 11 system over to a TrueNAS Core 13 system and it appears all of my datasets have inherited the group@ ACE essentially giving it FULL CONTROL. Although this is not the end of the world I would rather that they didn't so wondered if there is any way of that not happening otherwise I will have to leave it (giving users permissions I'd rather they didn't have) or go through all of my datasets to remove it.