If the lecherous priestess was copied and she is used during the IK war, she is removed from the list of Trin's duplicates. The dialogue during the IK war aftermath says something along the lines of her getting caught instantly.
Despite no longer showing up in the duplicate list, her copy slot is not refunded. She still is taking up a copy slot and the variable 019: total number of trin copes still includes her in the count.
Example: Trin for me shows post IK war:
Aramite Jade Clerk
Yuanuon
Orgasmic Empire Noble
Aramite Rapists
Ghanth's Aide
Aramite Priestess - 2
Antagonistic Hall Orc
This sums up to 8, but my trin copy variable is 9.