frontends: fixes bug with private message introduced with revision 1000 (6f1e03068b5f) + display messages from contacts not in roster

frontends/src/quick_frontend/quick_app.py

@@ -269,7 +269,7 @@ class QuickApp(object):
             else:
                 from_jid = new_jid
             if new_jid not in self.contact_list:
-                self.contact_list.add(new_jid)
+                self.contact_list.add(new_jid, [C.GROUP_NOT_IN_ROSTER])
 
         self.newMessage(from_jid, to_jid, msg, _type, extra, profile)
 

frontends/src/quick_frontend/quick_contact_list.py

@@ -57,11 +57,16 @@ class QuickContactList(object):
     def replace(self, jid, groups=None, attributes=None):
         """Add a contact to the list if doesn't exist, else update it.
 
+        This method can be called with groups=None for the purpose of updating
+        the contact's attributes (e.g. nickname). In that case, the groups
+        attribute must not be set to the default group but ignored. If not,
+        you may move your contact from its actual group(s) to the default one.
+
+        None value for 'groups' has a different meaning than [None] which is for the default group.
+
         @param jid (JID)
         @param groups (list): list of groups or None to ignore the groups membership.
         @param attributes (dict)
-
-        XXX: None value for 'groups' has a different meaning than [None] which is for the default group.
         """
         if attributes and 'name' in attributes:
             self.setCache(jid, 'name', attributes['name'])