I don't know that nesting is a problem. It's somewhat nonsensical from a single edit perspective and if we're allowing multiple edits merged together then all

I don't know that nesting is a problem. It's somewhat nonsensical from a single edit perspective and if we're allowing multiple edits merged together then all bets are off on making sense of this or working with it. If two deletions partially overlap then they can't be acted on easily either.