Because the online info reset (which includes online ID reset) was
happening after encoding,
`TestSceneBeatmapLeaderboard.TestLocalScoresDisplayOnBeatmapEdit()`
started failing, as the hash no longer matched expectations after the
first save of the map.
The online ID will be reset unconditionally after any local change is
made to any beatmap. That behaviour no longer depends on online lookups
succeeding or failing.
This may change at a later date when beatmap submission is integrated
into lazer - the idea is that online IDs would get re-populated on local
beatmaps once they are submitted to web.
This test scene passes at e58e1151f3 and
fails at current master, due to an inadvertent regression caused by
e72f103c17.
As it turns out, the online lookup flow that was causing UI thread
freezes when saving beatmaps in the editor, was also responsible for
resetting the online ID of locally-modified beatmaps if online lookup
failed.
This avoids the notice showing when running on windows, but using the
newer renderers (where the underlying logic hasn't been tested properly
and can result in false-positives).
Supersedes https://github.com/ppy/osu-framework/pull/5759 as a more
correct implementation.