diff -r fe34c75f62ab -r 6085b7f1536d mercurial/wireprotov2server.py
--- a/mercurial/wireprotov2server.py	Mon Apr 05 23:54:54 2021 -0400
+++ b/mercurial/wireprotov2server.py	Tue Apr 06 10:38:03 2021 +0200
@@ -1582,7 +1582,8 @@
 
     # TODO this is a bunch of storage layer interface abstractions because
     # it assumes revlogs.
-    for name, encodedname, size in topfiles:
+    for rl_type, name, encodedname, size in topfiles:
+        # XXX use the `rl_type` for that
         if b'changelog' in files and name.startswith(b'00changelog'):
             pass
         elif b'manifestlog' in files and name.startswith(b'00manifest'):