When I tried with 2G root disk I get
$ sudo zfs list -o name,quota juju-zfs/containers/juju-b49df8-3 NAME QUOTA juju-zfs/containers/juju-b49df8-3 2G
When I tried with 2G root disk I get
$ sudo zfs list -o name,quota juju-zfs/ containers/ juju-b49df8- 3 containers/ juju-b49df8- 3 2G
NAME QUOTA
juju-zfs/