#19 Tests

* refactors sharing user setting by introducing share_with(user) and share_with_list(user_list) for BaseObject for a more self-explanatory sharing

intervention/forms/forms.py

@@ -255,7 +255,7 @@ class NewInterventionForm(BaseForm):
             intervention.log.add(action)
 
             # Add the performing user as the first user having access to the data
-            intervention.users.add(user)
+            intervention.share_with(user)
         return intervention