In particular, we can avoid updating our mCells list unless we have to. This came up in bug 437733.
Created attachment 387395 [details] [diff] [review] Like so, say
>+ // -1 means append, so should use null prevSibling That should be nextSibling, of course.
8 years ago
Comment on attachment 387395 [details] [diff] [review] Like so, say r+sr=jst with your own comment addressed :)