core: fixed bad closure in connection intialisation sequence (profileConnected in plugins were not called correctly)

src/core/sat_main.py

@@ -260,7 +260,7 @@ class SAT(service.Service):
             d = current.getConnectionDeferred()
             d.addCallback(lambda dummy: current.roster.got_roster)  # we want to be sure that we got the roster
             for callback in plugin_conn_cb:
-                d.addCallback(lambda dummy: callback(profile))
+                d.addCallback(lambda dummy, callback=callback: callback(profile))
             return d
 
         self.memory.startProfileSession(profile)