https://bugs.webkit.org/show_bug.cgi?id=222917
<rdar://problem/75173628>
Reviewed by Wenson Hsieh.
* model-element/model-element-ready-load-aborted.html:
Fix this test; it could flakily fail if the load completed before unparenting the element,
which became more common after r274033 added a test that ran first and cached the resource.
Set the source just before unparenting to resolve this race.
Canonical link: https://commits.webkit.org/235049@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@274126 268f45cc-cd09-0410-ab3c-d52691b4dbfc
