When specifying repeatCount to be indefinite in a timeline,
the time value is not taken into account.

The following code:

===============================================
import javafx.animation.Timeline;
import javafx.lang.Duration.*;
import javafx.animation.KeyFrame;

var Number:Integer = 21;
var dur:Duration = 21s;

var timeline = Timeline{
    //repeatCount: 5
    repeatCount: Timeline.INDEFINITE
    autoReverse: true
    time: dur
    keyFrames: [
    at (0s) {Number => 0 },
    at (26s) {Number => 26} ],
}
timeline.play();

var currentPlayHead = bind Number on replace {
println("Number change:");
println(Number);
}

===============================================

prints:
Number change:
0
Number change:
21
Number change:
0
Number change:
1
Number change:
2
Number change:
3
.....

But if repeatCount is set to 5, it would print:
Number change:
0
Number change:
21
Number change:
22
Number change:
23
Number change:
24
Number change:
25
Number change:
26
Number change:
25
Number change:
24
Number change:
23
...