Can mark the working property as invalidate by stage info type if edit the target property in the lyric.

[andy840119]

Demo:
We should invalidate the stage element working property and re-calculate the timing in the preview stage info if edit the time-tag, but those things will not happened in the classic stage info

Not really sure how to auto invalidate the property by type, maybe:

public void SetTimeTagTime(TimeTag timeTag, double time)
{
    CheckExactlySelectedOneHitObject();

    PerformOnSelection(lyric =>
    {
        bool containsInLyric = lyric.TimeTags.Contains(timeTag);
        if (!containsInLyric)
            throw new InvalidOperationException($"{nameof(timeTag)} is not in the lyric");

        timeTag.Time = time;

        // Add this one:
        InvalidateAllHitObjectWorkingProperty<PreviewStageInfo>(LyricWorkingProperty.StageElements)

        // Or
        InvalidateAllHitObjectWorkingProperty<IStageInfoAffectedByTime>(LyricWorkingProperty.StageElements)

        // Or maybe there's no need to give it a enum because we already know which property need to be invalid by interface?
        InvalidateAllHitObjectWorkingProperty<IStageInfoAffectedByTime>()
    });
}

[andy840119]

Not really sure should make the base change handler(e.g. base change handler) for able to invalidate single hit-object or all hit-objects.

Not very sure because all the working property invalidate method is the temp way, and should be removed eventually.

[Update]
Guess OK to make the base class for collect the validation logic.