diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -1333,7 +1333,7 @@
     else:
         rn = None
         try:
-            pm = repo.changelog._partialmatch(n)
+            pm = scmutil.resolvehexnodeidprefix(repo, n)
             if pm is not None:
                 rn = repo.changelog.rev(pm)
         except error.WdirUnsupported:
diff --git a/tests/test-revset.t b/tests/test-revset.t
--- a/tests/test-revset.t
+++ b/tests/test-revset.t
@@ -1878,7 +1878,8 @@
   [255]
 BROKEN should be '2' (node lookup uses unfiltered repo since dc25ed84bee8)
   $ hg debugrevspec '0:wdir() & id(fffb)'
-  2
+  abort: 00changelog.i@fffb: ambiguous identifier!
+  [255]
   $ hg debugrevspec '0:wdir() & ffff8'
   4
   $ hg debugrevspec '0:wdir() & fffff'