This made the webgl/1.0.3/conformance/context/context-release-with-workers.html test and others crash or assert for debug.
Created attachment 451728 [details] Patch
Committed r289729 (247214@main): <https://commits.webkit.org/247214@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 451728 [details].
<rdar://problem/88896937>