Last modified: 2014-04-15 06:22:18 UTC
Deletion of the first post of a thread triggers deletion of the entire thread; undeletion doesn't do the same, as it should to be consistent (example: http://strategy.wikimedia.org/w/index.php?title=Special:Log&dir=prev&offset=20100906064357&limit=4&user=Nemo+bis ). You can argue that undeletion will be less common that deletion (for vandalism etc.), so I'm marking this as low priority.
*** Bug 23976 has been marked as a duplicate of this bug. ***