Jobin recommended I submit a request for the generic requirement of maintaining links after the copy.
Here's my example:
ABC-1 parent issue links to child ABC-2
Run copy project and bulk move script for Project A into Project B
BCD-1 loses relationship to BCD-2, based on project A hierarchy links
Look forward to a swift solution, as it seems the link relationships should be copied over since it is part of the project. It is currently a blocker for us, since we can't copy our template project to other projects without losing these link relationships.