Feature: [activity] automatically add a person to an activity, if

created in the person context

See https://gitlab.com/Chill-Projet/chill-bundles/-/issues/28

src/Bundle/ChillActivityBundle/Controller/ActivityController.php

@@ -359,6 +359,7 @@ final class ActivityController extends AbstractController
 
         if ($person instanceof Person) {
             $entity->setPerson($person);
+            $entity->getPersons()->add($person);
         }
 
         if ($accompanyingPeriod instanceof AccompanyingPeriod) {