Summary

When a Sub-task is moved to a new parent, deleting the old parent would also delete the sub-task, even though they are not linked anymore.

Environment

• Atlassian Cloud

Steps to Reproduce

1. Create an Issue, lets call it Parent A.
2. Create a sub-task from Parent A, lets call it Sub-task-1.
3. Go to the sub-task, click on the " . . . " -> Move. Select "Change Parent", and select any other issues in the same project.
4. Ensure that Sub-task-1 is no longer a sub-task of Parent A, and that Parent A no longer has any sub-tasks.
5. Delete Parent A.

Expected Results

Parent A would be the only issue that is deleted. Sub-task-1 should not be deleted, as Parent A is no longer the parent of Sub-task-1.

Actual Results

Sub-task-1 gets deleted together with Parent A.

Workaround

None.