This one is super duper annoying to test, because we already have e.g.
`TestScenePlaylistsScreen`. The only way to test it would be to use an
`OsuGameTestScene`.
Maybe this is okay?
This is important as the format will be used more when lazer beatmap
submission comes online, and its stability is a useful property for
that.
Included archive contains an `.osu` with a few fractional-millisecond
timing points and objects, as well as a multi-segment-type slider. That
should cover the range of all possible modifications that the
compatibility exporter currently performs.
Didn't really work to fix these tests due to the sticky nature of the
failure. Also I can no longer reproduce locally, so the hope is that
these are fixed by https://github.com/ppy/osu/pull/30634.