Probably has something to do with these:
zfs allow -s @homedir create,mount,readonly,snapshot testnas/home zfs allow -s @homeset clone,create,destroy,mount,promote,readonly,rename,snapshot testnas/home zfs allow -l cyberleo @homedir testnas/home/cyberleo zfs allow -d cyberleo @homeset testnas/home/cyberleo zfs allow -c @homeset testnas/home/cyberleo
Create a 'set' of permissions on a dataset; these sets are available to child datasets, but not outside of that heirarchy
zfs allow -s @homedir create,mount,readonly,snapshot testnas/home zfs allow -s @homeset clone,create,destroy,mount,promote,readonly,rename,snapshot testnas/home
Grant local permissions on a dataset
zfs allow -l cyberleo @homedir testnas/home/cyberleo
Grant permissions on descendants of the dataset
zfs allow -d cyberleo @homeset testnas/home/cyberleo
Set the permissions that will be granted to the creator when they create a dataset
zfs allow -c @homeset testnas/home/cyberleo