Function _onOverwrite

demo/js/index.js:10743–10753

(overwrittenTween, overwritingTween, target, killedProps)

				return _tweenLookup[id].tweens;
			},
			_onOverwrite = function(overwrittenTween, overwritingTween, target, killedProps) {
				var func = overwrittenTween.vars.onOverwrite, r1, r2;
				if (func) {
					r1 = func(overwrittenTween, overwritingTween, target, killedProps);
				}
				func = TweenLite.onOverwrite;
				if (func) {
					r2 = func(overwrittenTween, overwritingTween, target, killedProps);
				}
				return (r1 !== false && r2 !== false);
			},
			_applyOverwrite = function(target, tween, props, mode, siblings) {
				var i, changed, curTween, l;
				if (mode === 1 || mode >= 4) {