Issue 4011 had 2 root causes, one of which was fixed and the other split out into 4037.

Bug: angleproject:4011
Bug: angleproject:4037
Change-Id: I460588d7667429751416c1904863a5117a8a4b1d
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1878889Reviewed-by: Ian Elliott <ianelliott@google.com>
Commit-Queue: Ian Elliott <ianelliott@google.com>