In the flag summary page, the flagging history shows the disputed flags count for moderator attention flags but not for spam, offensive and comments flags.
I request the community to show that count for those flag types too.
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This was implemented in the latest build to help clarify the flag history a bit. You will now see declined, disputed, waiting for review, aged away on any flag where that status might apply. As animuson pointed out there is no disputed on comments so that wouldn't appear. The stats will now look like: