### Steps to reproduce

* Have a work package with an association to a closed sprint

* E.g. by

* Have a work package

* Have a sprint

* Associated the sprint to the work package

* Close the sprint

* Go to the work package

* Change any attribute


### What is the buggy behavior?

* An error is displayed

* The change cannot be persisted


### What is the expected behavior?

* While it should not be possible to assign a work package to a closed sprint, work packages on closed sprints should still be editable.

* The difference could be that the work package cannot be associated to a closed sprint (sprint\_id changed)


### Sceenshots

<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/920733/content">

One telling clue is the Sprint named 15.5.0. That sprint possibly was migrated from an old version named 15.5.0, however the association of the Begin of the insertion[work packageEnd of the insertion Begin of the deletion [ticketEnd of the deletion in question](https://community.openproject.org/wp/74158) is incorrect, because the ticket was created just recently. Begin of the insertion

Problematic work package: https://community.openproject.org/wp/74158End of the insertion