Revert "group0 wikis to 1.23wmf2"

Going back to known good state from earlier today.

This reverts commit 2b43e2bfaceb265fed02f72f203ff2f147b04836.

Change-Id: I8da7c571bbb1015c0a6aa46fe689ae7a04b7e50b
Merge "Revert "group0 wikis to 1.23wmf2""