diff -r 294a0aa51b8b -r b338d831d18c mercurial/context.py
--- a/mercurial/context.py	Thu Apr 15 19:54:03 2021 +0200
+++ b/mercurial/context.py	Tue May 11 12:22:26 2021 -0700
@@ -1392,6 +1392,9 @@
     def __bytes__(self):
         return bytes(self._parents[0]) + b"+"
 
+    def hex(self):
+        self._repo.nodeconstants.wdirhex
+
     __str__ = encoding.strmethod(__bytes__)
 
     def __nonzero__(self):