just BeginPlacement()
Addresses https://github.com/ppy/osu/discussions/19808.
EditorBeatmap.Update
PerformOnSelection
static
TernaryStateMenuItem
By moving this to a central location, we can avoid invoking the EditorChangeHandler when there is no selection made. This helps alleviate the issue pointed out in https://github.com/ppy/osu/issues/11901, but not fix it completely.
f selected hitobjects