When scrolling to new areas using mouse-wheel or keyboard the new areas are often unpainted until the minibrowser is resized, or panned using touch.
Created attachment 143769 [details] Patch
Comment on attachment 143769 [details] Patch Clearing flags on attachment: 143769 Committed r118342: <http://trac.webkit.org/changeset/118342>
All reviewed patches have been landed. Closing bug.