### Steps to reproduce

1\. Create a parent and child tasks with empty versions
2\. Set one version on the parent -> child will inherit it
3\. Change the status of the child element to a read-only one
4\. Change the version of the parent work package 

### What is the buggy behavior?

* Child task's version changes as well (despite being read-only)


### What is the expected behavior?

1. Begin of the insertionThe inheritance of version down to tasks is removed asEnd of the insertion Begin of the deletion Unclear whatEnd of the deletion the Begin of the insertionbacklogs settings to define whatEnd of the insertion Begin of the deletion expected behaviorEnd of the deletion is Begin of the insertiona story and what is a task is dropped.End of the insertion


### Important note

_Reported by a client in a helpdesk ticket_

### Environment information

**OpenProject version**

_15.4.0_