fix typo

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15054 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5SyncML/Subscription.py

@@ -569,7 +569,7 @@ class Signature(Folder,SyncCode):
     """
     Returns the object corresponding to this signature
     """
-    return self.getParentValue().getObjectIdGid(self.getObjectId())
+    return self.getParentValue().getObjectFromGid(self.getObjectId())
 
   def checkSynchronizationNeeded(self, object):
     """