<pattern>'s have to support patternContentUnits="objectBoundingBox". coords-units-01-b.svg doesn't show percentage / fractional patterns, because this stuff is missing. Attaching patch soon.
Created attachment 12046 [details]
Fixes coords-units-01-b.svg. No new regressions. Baseline updated.
Created attachment 12047 [details]
Uploaded wrong patch by accident. Here is the correct one.
Created attachment 12048 [details]
Patch was still not correctly prepared. Sorry for the patch jam - I'm confused today :-)
Landed in r18425.