[next, post-pre3] MobjRemoved hook is broken, always immediately errors into "please check valid"

introduced by !2558 (merged)

Line that now errors from the example given:

changed title from [next, post-pre3] Very frequent "please check valid" lua errors with literally every lua script to [next, post-pre3] MobjRemoved hook is broken, always immediately errors into "please check valid"

mentioned in commit 5fd606ea

mentioned in merge request !2564 (merged)

mentioned in issue #1326

closed with merge request !2564 (merged)

mentioned in commit a18aca36