RenderSVGContainer is calculating the local transformation before boundaries, but depending on the value of `transform-box` the transformation might rely on the boundaries. I do not think that the local transformation should be used at all when calculating boundaries, so the order can be changed here. This is why imported/w3c/web-platform-tests/css/css-transforms/transform-box/fill-box-002.html is failing.
<rdar://problem/86716288>
STP170 is passing this now: https://wpt.fyi/results/css/css-transforms/transform-box/fill-box-002.html?label=experimental&label=master&aligned= We can close this as "RESOLVED CONFIGURATION CHANGED".