--- a/mercurial/error.py	Thu Oct 15 22:23:02 2020 -0700
+++ b/mercurial/error.py	Tue Oct 20 08:58:20 2020 -0700
@@ -48,7 +48,7 @@
 
 
 class RevlogError(StorageError):
-    __bytes__ = _tobytes
+    pass
 
 
 class SidedataHashError(RevlogError):