The import process was running on the async load thread, but then
accessed from the access thread later on. This seemed to somehow pass
fine in headless runs, but would fail on visual test execution
(specifically on `TestBeatmapConfirmed()`).
This was definitely added at someone's request, since I wouldn't have
put it here. But it's displayed below in the details section already and
also not displayed in the updated "wedge" in the new design.
See https://github.com/ppy/osu/discussions/17537 for discussion.