Yes, in normal operating position, but...

I did some experimenting. See vid. It will back up at least two notches, couldn't really count, if rotated clockwise while compressing. Which exactly what happens when screwing in the part. I think.

Brilliant design, or happy accident? IDK. But this may explain why so many seem to be getting away with installing activated.

Now I want to build a jig and prove it, one way or another.

Here's a little vid of my crude test:

You Tube

 

But it doesn't stay retracted.

 

No, it doesn't stay retracted. As we well know; you gotta disassemble it to reset it.

And no, it doesn't stay retracted. An if it dd, you'd need to activate it.

But I think maybe it retracts just enough to not over-tension the chain, and is left in an activated state, ready to do what it's spoda. Maybe.

Again, I'm not ready to try it.