What steps will reproduce the problem?
1. click on a dis-joint span on the panel of annotation editor.
2. the "diff" button appears sometimes, and it should not be displayed if these
is no duplicates or overlaps.
Original issue reported on code.google.com by jwleng@gmail.com on 21 Feb 2012 at 7:19
Original issue reported on code.google.com by
jwleng@gmail.com
on 21 Feb 2012 at 7:19