Reduction and patch forthcoming.
Created attachment 12930 [details] Reduction
Created attachment 12931 [details] Patch including change log and layout test No layout test regressions
Created attachment 12961 [details] Patch including change log and layout test Changed + if (!growForPrevious && (autoWrap || oldAutoWrap || clearPreviousFloat)) { to + if (!growForPrevious && (autoWrap || oldAutoWrap) || clearPreviousFloat) { since the crazy quirk does not apply here.
Comment on attachment 12961 [details] Patch including change log and layout test r=me
Landed in r19493.