Scrolling down far enough in SongSelect and then trying to scroll via mouse crashes the game

This needs a fair amount of beatmaps, probably a few hundred sets. But when you scroll down a certain amount and then try to drag with the mouse, ScrollContainer gives an error without actual message. Looking into it, it’s usually a Trace.Assert call inside OnDrag that fails because the two values are too far apart from each other (looks like a float imprecision).

[peppy]

Reproduction:

• Switch to local framework
• Drop this code in TestSceneBeatmapCarousel:

[Test]
public void TestLoadMany()
{
    List<BeatmapSetInfo> manySets = new List<BeatmapSetInfo>();

    for (int i = 1; i <= 10000; i++)
        manySets.Add(createTestBeatmapSet(i));

    loadBeatmaps(manySets);

    AddStep("scroll to last", () => carousel.SelectBeatmap(manySets.Last().Beatmaps.First()));
}

• Run and drag for about 500ms after it finishes the steps

This probably needs a framework-side issue and fix.

[bdach]

No need to double-track this. Closing in favour of framework issue.