Depending on the airline, if you re-issued a document by mistake, you may be authorized to void or cancel it.
You can use TRDC to void exchanged/reissued documents or cancel the refunded document. Here you can find some entries:
The return flight of the following itinerary has been changed to Z class and ticket reissued; after
that you found your mistake of reissue, now you can use TRDC command to cancel the reissue
Entry to cancel exchange ticket: TRDC/L6/T-LH
Original e-ticket record after using TRDC entry:
The exchanged ticket record after using TRDC entry:
Canceled tickets will be displayed in the query report as below: