At the same time, we change the defaults for both of them to "date" (they were
"recency" and "alphabetical", respectively, before). This is the reason we need
to touch so many integration tests. For some of them I decided to adapt the test
assertions to the changed sort order; for others, I added a SetupConfig step to
set the order back to "recency" so that I don't have to change what the test
does (e.g. how many SelectNextItem() calls are needed to get to a certain
branch).
Keep the same commit selected, by moving the selection down by the number of
cherry-picked commits. We also do this when reverting commits, and it is
possible now that we use a sync waiting status.
We also need to turn the refresh that happens as part of CheckMergeOrRebase into
a sync one, so that the commits list is up to date and the new selection isn't
clamped.
