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Add detailed explaination for the reason of using old binding method
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@ -23,6 +23,12 @@ namespace osu.Game.Overlays
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// this is done to ensure a click on this button doesn't trigger focus on a parent element which contains the button.
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public override bool AcceptsFocus => true;
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// this is intentionally not using BindableWithCurrent as this needs a BindableNumber instance for an accurate IsDefault value.
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//
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// this also cannot use IBindableWithCurrent.Create() due to BindableNumberWithCurrent
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// directly casting given bindables to BindableNumber, which is not necessarily the case.
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//
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// therefore rely on the old method of taking each current bindable instance for now, until things are settled framework-side.
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private Bindable<T> current;
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public Bindable<T> Current
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