### Steps to reproduce

1. Create this project structure: Begin of the deletion

End of the deletion 0 Main Project
0.1 Sub Project
0.2 Sub Project Begin of the insertion
End of the insertion Begin of the deletion


End of the deletion 2. Add phases to each sub project. E.g. Phase 1, Phase 2, Phase 3
3. Add precedes/follow relations between them, so that Phase 2 follow Phase 1 etc.
4. Do this in every project, you now have a structure like this Begin of the deletion

End of the deletion 0 Main Project
Phase 1
Phase 2
Phase 2 Begin of the deletion

End of the deletion 0.1 Sub Project
Phase 1
Phase 2
Phase 2 Begin of the deletion

End of the deletion 0.2 Sub Project
Phase 1
Phase 2
Phase 2
5. Now, set additional precedes/follow relations between the phase of the different projects: Phase 1 of "0.1 Sub Project" follows Phase 3 of "0 Main Project", then Phase 1 of "0.2 Sub Project" follows Phase 3 of "0.1 Sub Project" Begin of the insertion
End of the insertion Begin of the deletion


End of the deletion 6. Make all the projects template projects
7. Create the same project structure with the template you just created, so you have Begin of the deletion

End of the deletion 0 New Main Project (from template 0 Main Project)
0.1 New Sub Project (from template 0.1 Sub Project)
0.2 New Sub Project (from template 0.2 Sub Project) Begin of the insertion
End of the insertion Begin of the deletion


End of the deletion 8. Next, check the relations of the newly created phases. Begin of the insertion

End of the insertion Begin of the deletion



End of the deletion ### What is the buggy behavior?

* There are duplicated and unnecessary relations that point to the work packages from the template project, besides the correct relations that have been created with new projects. For example, the way each work package is set, almost all of them have exactly 1 predecessor and 1 follower (except for the first and last one that only have respectively just one follower and one predecessor). However, we now also have  an additional relation that points to the work package from the template

<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/82200/content">

### What is the expected behavior?

1. Only the necessary relations should be created.

### Important note

Reported Begin of the insertionin helpdesk ticket # 10583End of the insertion Begin of the deletion in: https://helpdesk.openproject.org/web#id=10583&amp;cids=1&amp;menu\_id=232&amp;action=330&amp;model=helpdesk.ticket&amp;view\_type=formEnd of the deletion

### Environment information

_Please check and fill out the following details to help us identify in what versions and distributions of OpenProject the error occurs_

**OpenProject version**

_Reproduced on QA Stage 13.1.0_