959f56b993
When inheriting the "snapdev" property to we don't always call zfs_prop_set_special(): this prevents device nodes from being created in certain situations. Because "snapdev" is the only *special* property that is also inheritable we need to call zfs_prop_set_special() even when we're not reverting it to the received value ('zfs inherit -S'). Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: loli10K <ezomori.nozomu@gmail.com> Closes #6131