Should show selection highlight during text interaction to have a good user experience.
<rdar://problem/59191873>
Created attachment 398538 [details] Patch
Created attachment 398539 [details] Patch
Thanks for the review, Wenson.
Comment on attachment 398539 [details] Patch Clearing flags on attachment: 398539 Committed r261194: <https://trac.webkit.org/changeset/261194>
All reviewed patches have been landed. Closing bug.