diff -r 07a6a29d25ea -r 62435a5b46fe mercurial/scmutil.py
--- a/mercurial/scmutil.py	Fri May 08 08:55:35 2020 -0700
+++ b/mercurial/scmutil.py	Mon May 11 09:07:31 2020 -0700
@@ -456,9 +456,7 @@
 
 
 def resolvehexnodeidprefix(repo, prefix):
-    if prefix.startswith(b'x') and repo.ui.configbool(
-        b'experimental', b'revisions.prefixhexnode'
-    ):
+    if prefix.startswith(b'x'):
         prefix = prefix[1:]
     try:
         # Uses unfiltered repo because it's faster when prefix is ambiguous/