See http://bugreports.qt.nokia.com/browse/QTBUG-15529 for a working test case.
Flickable steals the grab, but the timer was not stopped and the
keepGrab flag is set and the mouse grabbed. This means that the WebView
now has the grab and subsequent clicks on another element are ignored.
Patch for webkit (based on the patch already submited to Qt) is on the way.
Created attachment 82041 [details]
Attachment 82041 [details] did not pass style-queue:
Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebKit/qt/ChangeLog', u'Source/WebK..." exit_code: 1
Source/WebKit/qt/declarative/qdeclarativewebview_p.h:73: The parameter name "event" adds no information, so it should be removed. [readability/parameter_name] 
Total errors found: 1 in 3 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Comment on attachment 82041 [details]
Clearing flags on attachment: 82041
Committed r78270: <http://trac.webkit.org/changeset/78270>
All reviewed patches have been landed. Closing bug.
Revision r78270 cherry-picked into qtwebkit-2.1 with commit 830d494 <http://gitorious.org/webkit/qtwebkit/commit/830d494>
Revision r78270 cherry-picked into qtwebkit-2.0 with commit dc72f20 <http://gitorious.org/webkit/qtwebkit/commit/dc72f20>