# Conflicts: # osu.Game/Graphics/Containers/ReverseDepthFillFlowContainer.cs
# Conflicts: # osu.Game.Rulesets.Mania/UI/Column.cs
# Conflicts: # osu.Game.Rulesets.Mania/Objects/Drawables/DrawableHoldNote.cs # osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.cs
Covers the case where nested hit objects are involved.
Because not all playfields will be using this.
# Conflicts: # osu.Desktop.VisualTests/osu.Desktop.VisualTests.csproj
Also adds transition, uses IHasCurrentValue, combines Mod TestCases and more.