Update rollback test expectations
Update rollback test expectations

I can't find a better way to do this. It's very hard to trigger an
actual failure in the import process these days. For now I've just made
this work with the new assumptions. May be worth removing the test in
the future if this ever backfires.

ppy/osu,ppy/osu,peppy/osu,peppy/osu,peppy/osu,ppy/osu