Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 28 Nov 2022 15:59:52 +0100] rev 49607
emitrevision: also check the parents in the availability closure
One of the point of having a closure is to gather the logic in it. So we gather
the logic.
The `parents[:]` part is a bit ugly but will be replaced by better code soon
anyway.