well, maybe I spoke too hastily. All that rev 13776 does is just to decide whether or not to call the routine root->viewBox.setMax. It does not actually care what is in this routine, it just decides not to call it. Therefore rev 13632 and rev 13753 are probably not necessary, since these revs refer only to what is actually inside setMax. This simplifies the problem significantly, but it will still need some testing to confirm.
well, maybe I spoke too hastily. All that rev 13776 does is just to decide whether or not to call the routine root->viewBox. setMax. It does not actually care what is in this routine, it just decides not to call it. Therefore rev 13632 and rev 13753 are probably not necessary, since these revs refer only to what is actually inside setMax. This simplifies the problem significantly, but it will still need some testing to confirm.