diff -r 08802795ae90 -r aad81032a128 mercurial/httppeer.py
--- a/mercurial/httppeer.py	Tue Dec 01 20:35:19 2020 +0100
+++ b/mercurial/httppeer.py	Fri Dec 04 12:42:23 2020 +0100
@@ -895,7 +895,7 @@
             return True
 
         # Other concepts.
-        if name in b'bundle2':
+        if name in (b'bundle2',):
             return True
 
         # Alias command-* to presence of command of that name.