diff --git a/tests/test-repo-filters-tiptoe.t b/tests/test-repo-filters-tiptoe.t
--- a/tests/test-repo-filters-tiptoe.t
+++ b/tests/test-repo-filters-tiptoe.t
@@ -105,3 +105,28 @@
    some line
    in a
   +file
+
+exporting the current changeset
+
+  $ hg export
+  exporting patch:
+  # HG changeset patch
+  # User test
+  # Date 0 0
+  #      Thu Jan 01 00:00:00 1970 +0000
+  # Node ID c2932ca7786be30b67154d541a8764fae5532261
+  # Parent  05293e5dd8d1ae4f84a8520a11c6f97cad26deca
+  c
+  
+  diff -r 05293e5dd8d1ae4f84a8520a11c6f97cad26deca -r c2932ca7786be30b67154d541a8764fae5532261 c
+  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
+  @@ -0,0 +1,1 @@
+  +c
+  diff -r 05293e5dd8d1ae4f84a8520a11c6f97cad26deca -r c2932ca7786be30b67154d541a8764fae5532261 z
+  --- a/z	Thu Jan 01 00:00:00 1970 +0000
+  +++ b/z	Thu Jan 01 00:00:00 1970 +0000
+  @@ -1,2 +1,3 @@
+   some line
+   in a
+  +file