--- a/CHANGELOG	Mon Mar 25 15:44:44 2019 -0700
+++ b/CHANGELOG	Mon Mar 25 15:45:11 2019 -0700
@@ -7,6 +7,7 @@
   * split: preserve phases (issue6048)
   * evolve: fix an recoverable state (issue6053)
   * prune: fix error message when pruning public changesets
+  * touch: fix error message when touching public changesets
 
 8.4.0 -- 2019-12-22
 -------------------

--- a/hgext3rd/evolve/cmdrewrite.py	Mon Mar 25 15:44:44 2019 -0700
+++ b/hgext3rd/evolve/cmdrewrite.py	Mon Mar 25 15:45:11 2019 -0700
@@ -1334,7 +1334,7 @@
         ui.write_err('no revision to touch\n')
         return 1
     if not duplicate:
-        rewriteutil.precheck(repo, revs, touch)
+        rewriteutil.precheck(repo, revs, 'touch')
     tmpl = utility.shorttemplate
     displayer = compat.changesetdisplayer(ui, repo, {'template': tmpl})
     wlock = lock = tr = None

--- a/tests/test-touch.t	Mon Mar 25 15:44:44 2019 -0700
+++ b/tests/test-touch.t	Mon Mar 25 15:45:11 2019 -0700
@@ -161,3 +161,12 @@
        rewritten(.*) as [0-9a-f]{12} using touch by test (.*) (re)
          note: testing with no successor
   
+
+Public phase
+
+  $ hg phase --public -r 2
+  $ hg touch 2
+  abort: cannot touch public changesets: * (glob)
+  (see 'hg help phases' for details)
+  [255]
+  $ hg touch --duplicate 2