I think I have a lead on the recent regression by comparing queries before and after; it seems to be something subtle to do with the use of ClassAlias in https://code.launchpad.net/~cjwatson/launchpad/+git/launchpad/+merge/394702. Debugging now.
I think I have a lead on the recent regression by comparing queries before and after; it seems to be something subtle to do with the use of ClassAlias in https:/ /code.launchpad .net/~cjwatson/ launchpad/ +git/launchpad/ +merge/ 394702. Debugging now.