Encounter the crash on iOS debug build when using Kayak app, which uses both WK1 and WK2.
<rdar://problem/43029137>
<rdar://problem/43035627>
Created attachment 346758 [details] Patch
Comment on attachment 346758 [details] Patch Clearing flags on attachment: 346758 Committed r234692: <https://trac.webkit.org/changeset/234692>
All reviewed patches have been landed. Closing bug.