--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-censor2.t	Fri Apr 22 14:39:00 2022 +0100
@@ -0,0 +1,23 @@
+  $ cat >> $HGRCPATH <<EOF
+  > [censor]
+  > policy=ignore
+  > EOF
+
+  $ mkdir r
+  $ cd r
+  $ hg init
+  $ echo secret > target
+  $ hg commit -Am "secret"
+  adding target
+  $ touch bystander
+  $ hg commit -Am "innocent"
+  adding bystander
+  $ echo erased-secret > target
+  $ hg commit -m "erased secret"
+  $ hg censor target --config extensions.censor= -r ".^^"
+  $ hg update ".^"
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ cat target
+  $ hg update tip
+  abort: file censored data/target:b1c12cf98dc8 (known-bad-output !)
+  [255]