In addition to the child epics and issues, we need to ensure that there are no regressions in: - Moving work items in similar (or better) manner as legacy issues. - Cloning work items via a quick action. - Resource events and other things power features behind the scenes are working as expected. ## To complete before migrating issues to work items - All child epics and issues within this epic. - An alternative presentation of dependencies is detailed here - https://gitlab.com/gitlab-org/gitlab/-/issues/458986+.