Added some comments to clarify the last checkin in the code itself, since it may be difficult to understand why this is necessary.
Added some comments to clarify the last checkin in the code itself, since it may be difficult to understand why this is necessary.

--HG--
extra : convert_revision : svn%3A77541ad4-5f01-0410-9ede-a1b63cd9a898/trunk%404026

lucius-feng/tg2,lucius-feng/tg2