--- a/mercurial/bundle2.py	Tue Feb 04 12:07:37 2020 +0100
+++ b/mercurial/bundle2.py	Thu Jan 02 11:04:18 2020 -0800
@@ -1013,6 +1013,7 @@
         self._generated = None
         self.mandatory = mandatory
 
+    @encoding.strmethod
     def __repr__(self):
         cls = b"%s.%s" % (self.__class__.__module__, self.__class__.__name__)
         return b'<%s object at %x; id: %s; type: %s; mandatory: %s>' % (