Remy Blank's ACL non-existing uname bug

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@746 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

branches/r1-0/rdiff-backup/CHANGELOG

@@ -11,6 +11,9 @@ Selection fix: empty directories could sometimes be improperly
 excluded if certain include expressions involving a non-trailing '**'
 were used.  Bug reported by Toni Price.
 
+Bug #15436 reported by Remy Blank: rdiff-backup would sometimes crash
+if ACLs and uname did not exist on destination.
+
 
 New in v1.0.3 (2005/11/25)
 --------------------------

branches/r1-0/rdiff-backup/rdiff_backup/user_group.py

@@ -92,7 +92,7 @@ class Map:
 		try: return self.name2id_dict[name]
 		except KeyError:
 			out_id = self.find_id_from_name(name)
-			self.name2id_dict[name] = out_id
+			if out_id is not None: self.name2id_dict[name] = out_id
 			return out_id
 
 	def get_id_from_id(self, id): return id