It isn't specified which treasure it is. Let's assume that the restart is taken when there is only one path to ANY treasure.

It's just that on 8xm12a, the guard in the treasure "costs" 3000 value.

And on 6lm10a, there is one path to the treasure (6000 value) in half of the generations.

And even on 8mm6a, it sometimes gives one path to the center (which is a treasure).

I'm listing all the playable generations here.

In my opinion, the restart along the path to the treasure should be removed altogether, as it is clearly unnecessary here. Or, specify on which template and to which treasure.

Added 3 minutes ago
Ah, I noticed

This rule only applies to 8mm6/8mm6a.

It should be added to the first post.