Patch for issue 5599, HasDataEditor doesn't handle removes. http://gwt-code-reviews.appspot.com/1297801/show Patch by: t.broyer Review by: bobv git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9775 8db76d5a-ed1c-0410-87a9-c151d255dfc7