Well, at least there is a fix to the problem. It's good news..... Now let's hope it will be released in a matter of days, not longer.
Same it is bloody annoying.
I have a certain website that shows this bug EVERY single time without fail, even after a force refresh and it does it with the latest dev build.
The Canary build was also doing the same EVERY time on this website, after the update it now renders perfectly, so they have found the bug and squashed it I don't know how long it usually takes for the update to roll through to the dev channel though.