Destroying a jail with promoted dependent jails destroys those jails as well

[chmeeedalf]

I created a jail foo, then cloned it into bar and baz. I then tried destroying foo, which threw an error that there were two dependent jails, and I would need to recursively destroy the jail. I then promoted bar using zfs promote. After doing this, I tried destroying foo again, just for kicks mostly. No warnings about dependent jails, even though baz is still a dependent jail, and it destroyed foo, bar, and baz.

At the very least I would expect another warning, but also would expect it to detect that bar is no longer a zfs dependent clone, and not destroy it.

[dgeo]

sounds a bit like #53
zfs snapshots names and clones detection should be more solid…