This situation makes me feel that I'm inclined to skip the back-patch to v9.5. Because the next minor version release is the final one for v9.5. So if we unexpectedly introduce the bug to v9.5 by the back-patch, there is no chance to fix that. OTOH, of course, if we don't do the back-patch, there is no chance to fix the deadlock detection bug since the final minor version for v9.5 doesn't include that bug fix. But I'm afraid that the back-patch to v9.5 may give more risk than gain.
Thought?
Honestly, I was thinking that this will not be backpatched at all
and really am glad we're getting this fixed in the back branches as well.
Therefore I think it's fine to skip 9.5, though I would've mentioned this in the commit message.
