I have repeating tasks that I want to track how many times I postpone them. However, the postpone tracker doesn't reset after I complete the task.

This post indicates that it should if I use the "after" instead of "every" style of repeating, but I tested that and it doesn't work.
https://www.rememberthemilk.com/forums/help/20488/

Is that post wrong? Am I doing something wrong perhaps? Is there another solution to this?

Use case:
I want to do a workout once a week. If I postpone it, I want it to show up on a Smart List. From there I can increase it's priority (either manually or with a script). When I complete it, I want the task to show up again next week with it's original priority and postpone count = 0.