<rdar://problem/55535249>
Created attachment 379403 [details] proposed patch.
Comment on attachment 379403 [details] proposed patch. r=me
Thanks for the review. I'm going to replace "initialization" with "materialization" in my test name and ChangeLog comments because I think it's a more accurate description.
Landed in r250264: <http://trac.webkit.org/r250264>.
<rdar://problem/55642472>
*** Bug 202150 has been marked as a duplicate of this bug. ***