diff -r 5631b0116374 -r c93dd9d9f1e6 mercurial/repair.py
--- a/mercurial/repair.py	Wed Jul 15 11:38:54 2020 +0200
+++ b/mercurial/repair.py	Fri Jul 17 09:20:48 2020 +0200
@@ -66,7 +66,7 @@
     else:
         bundletype = b"HG10UN"
 
-    outgoing = discovery.outgoing(repo, missingroots=bases, missingheads=heads)
+    outgoing = discovery.outgoing(repo, missingroots=bases, ancestorsof=heads)
     contentopts = {
         b'cg.version': cgversion,
         b'obsolescence': obsolescence,