LP#
1406786: fix remapping copies during parts merge
This patch fixes an issue with how copies are mapped
on the target part when using "Merge Selected" in the
Monograph Parts interface.
To test:
[1] Create some monograph parts on a record and assign
some copies to use them.
[2] Use the merge parts function to collapse all of the
parts created in step 1 onto a single part.
[3] Verify that the copies whose original parts were removed
are now mapped onto the part that was the target of the
merge.
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Dan Wells <dbw2@calvin.edu>