Now that DOCX is fixed in bug 66039, here is DOC bug for groupshape support.
Open DOC attachment 81199 [details] from bug 66039, in attachment 128819 [details] see wrong table compared to MSO.
Open DOC attachment 154935 [details] from bug 127506, and see how it should look in attachment 154937 [details], which shows MSO, DOC as it is (with wrong table) and DOCX as how it was before the fix.
Would be cool to have some screenshot with comparison
There are screenshots im report, the links.