revsets: catch type error on tip^p1(tip) (issue2884)
test that 'hg commit' does not crash if the user removes a newly added file $ hg init $ echo This is file a1 > a $ hg add a $ hg commit -m "commit #0" $ touch b $ hg add b $ rm b $ hg commit -A -m"comment #1" removing b nothing changed [1]