Patch submitted to http://bugzilla.lyx.org/show_bug.cgi?id=686 .
Current behavior: [] means cell boundary, | is cursor [|] + del/bs = | (remove empty cell from inside) [[|]] + del/bs = [|] (the same) [|] --- del: nothing happens, backspace: move left [other] [|]a --- del/bs: top cell becomes |a [other] [abc|]: del: nothing happens. Previously, turn to |[abc]. Please test and see if you have the behaviors. Cheers Bo