diff -r 9c0db3671008 -r 1bf2b44c4007 tests/test-log-bookmark.t
--- a/tests/test-log-bookmark.t	Tue Dec 01 19:32:36 2020 +0900
+++ b/tests/test-log-bookmark.t	Tue Dec 01 20:22:24 2020 +0900
@@ -190,3 +190,9 @@
   $ hg log -B unknown
   abort: bookmark 'unknown' does not exist
   [255]
+
+Shouldn't accept string-matcher syntax:
+
+  $ hg log -B 're:.*'
+  abort: bookmark 're:.*' does not exist
+  [255]