[EmFieldGroup] Ajout du constructeur

EditorialModel/fieldgroups.py

@@ -23,6 +23,9 @@ class EmFieldGroup(EmComponent):
     ## List of fields
     _fields = [('class_id', ftypes.EmField_integer)]
 
+    def __init__(self, data, components):
+        super(EmFieldgroup, self).__init__(data, components)
+
     @classmethod
     ## Create a new EmFieldGroup
     #