This wasn't an intended change, it should still work. What do you mean that it doesn't work any more?
It does not stop the ticking. it works fine in latest stable but not in r190.
test addon, it's a behavior:
filebin.net/c9yjdd6aq9rd8a8p/newplugin_1_0_0_0.c3addon
Tick()
{
console.log(this.count);
this.count++;
if (this.count == 10)
{
console.log(this.count);
this._StopTicking();
}
}
C3.Behaviors.test_tick.Acts = {
Start()
{
this.count = 0;
this._StartTicking();
}
};