Is her new home a permanent one? Were it me (and it has been) I get upset at the effect of all these tags on sheep's ears, so as you have run out of fresh places for her to rip, I would hand over the spare tag to the new owner to keep safe somewhere and not actually put it in the ear, for welfare purposes, as long as it matches the other tag and it's not the EID. Talk it over with the new owner first of course. In my experience most sheep keepers on a smallholding scale would prefer to keep the tag safely with her registration documents. If she would then be going on to a sale at some point, or for slaughter, the owner would have the tag available to put in and by that time the ear would have healed.
If you spot an ear recently torn by a tag, you can use superglue to repair the tear.