Created attachment 191801 [details]
Please check out the attached test case.
Currently we see 4 shape-inside circle left-top quarters, but we should see only 1 big shape-inside circle over the regions.
The spec will be going with a more conservative behavior. => This bug is invalid.
Reference: Bug #111379
Surprise! The spec changed to make this issue valid again.
Still repros on today's nightly (r151543)