Still an issue, and still occuring in newest snapshot (13w07a).Since nothing has changed with minecarts (exception the addition of activator rail)
The one you linked to is the same thing, but I discovered another way using 2 sticky pistons.
1.4.4 has been released, and this issue is still happening.
Normal track.
Valdamoon
Still an issue, and still occuring in newest snapshot (13w07a).
Since nothing has changed with minecarts (exception the addition of activator rail)