At first, there are 4 red bars at the top right. After clicking, there are only 3.
Oops, that comment was meant for bug 730562.
Created attachment 607810 [details] [diff] [review] Patch
Created attachment 607811 [details] [diff] [review] The testcase as reftest
>+ // Make sure that the last continuation we made fluid does not itself have a >+ // fluid continuation (this can happen when re-resolving after dynamic changes >+ // to content )