--- a/tests/test-casefolding.t	Thu Apr 02 21:29:05 2015 +0900
+++ b/tests/test-casefolding.t	Sat Apr 04 21:54:12 2015 -0700
@@ -37,6 +37,15 @@
   $ hg mv A a
   $ hg st
 
+addremove after case-changing rename has no effect (issue4590)
+
+  $ hg mv a A
+  $ hg addremove
+  recording removal of a as rename to A (100% similar)
+  $ hg revert --all
+  forgetting A
+  undeleting a
+
 test changing case of path components
 
   $ mkdir D