Since r106121 MiniBrowser does not print the page after a scroll animation finishes. This is caused by the render layers do not get flushed at the end of the animation.
Created attachment 124545 [details] proposed patch
Comment on attachment 124545 [details] proposed patch Clearing flags on attachment: 124545 Committed r106249: <http://trac.webkit.org/changeset/106249>
All reviewed patches have been landed. Closing bug.