Created attachment 285488 [details] [Video] sidebar flicker A related issue: switching to the Node panel from either Styles or Layers causes noticeable repaints as ObjectTreeViews rebuild their child items. Regressed in https://trac.webkit.org/changeset/203253.
<rdar://problem/27733024>
Created attachment 285504 [details] [Patch] Proposed Fix
Comment on attachment 285504 [details] [Patch] Proposed Fix Clearing flags on attachment: 285504 Committed r204233: <http://trac.webkit.org/changeset/204233>
All reviewed patches have been landed. Closing bug.