The set-webkit-configuration is too aggressive at deleting config files when coverage/sanitizer switch is not set. This regressed in r275150 for Bug 176131. See also Bug 224009, which fixed the non-coverage/non-sanitizer switches.
Created attachment 425549 [details] Patch v1
Comment on attachment 425549 [details] Patch v1 r=me
Comment on attachment 425549 [details] Patch v1 Marking cq+ since all build queues have finished building.
Committed r275686 (236320@main): <https://commits.webkit.org/236320@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 425549 [details].
<rdar://problem/76426292>