Safeguard against when underlay has been destroyed somehow, fixes #11564 !strict.
Safeguard against when underlay has been destroyed somehow, fixes #11564 !strict.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@22737 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful