Thank you for the answer!
I tested "tween.totalProgress(1)" and found "tween.repeat(0)" is redundat.
But "complete(skipRender:Boolean = false)" has the argument "skipRender". How to repeat the behavior of "skipRender true"?
I can't provide an example because didn't find the old js version of gsap.
I found only the ActionScript 3 source https://github.com/orta/virtualapps/blob/master/src/gs/TweenLite.as
It seems "complete(true)" completes tweens without setting tweens to a finish state.