Before the last patch 2.1, the achievement's that required multiple achievements to complete would show as complete when viewed under the associated achievement. For example, Mastering War had several meta-achievements which no longer show as completed for the ones I have done. They all appear greyed out as if none of them have been done.
Mastering War - Nothing appears done.
http://i58.tinypic.com/2ef2w07.png
1st Meta is done though
http://i57.tinypic.com/1sdpfn.png