Remove _parent_ hack
With #3819 (closed), it should be possible to remove the _parent_ hack inside the One2Many evaluation.
This instance will be upgraded to Heptapod 1.3.3 (GitLab 16.9.6) on 2023-04-25 at 18:00 UTC+2
With #3819 (closed), it should be possible to remove the _parent_ hack inside the One2Many evaluation.