When we move or copy an object to a new location, the object inherit his parent's section.
But if we update the parent's section, then the subtree is not affected.
This behaviour could be clarified in documentation: https://ez-systems-developer-documentation.readthedocs-hosted.com/en/master/guide/repository/#sections
Note: This improvement request came from the invalid issue
EZP-27763, that was closed after some analysis was made on what should be the expected behaviour.