--- a/tests/test-demandimport.py	Wed Sep 21 02:46:59 2016 +0000
+++ b/tests/test-demandimport.py	Wed Sep 21 03:39:37 2016 +0000
@@ -65,6 +65,7 @@
 
 demandimport.disable()
 os.environ['HGDEMANDIMPORT'] = 'disable'
+# this enable call should not actually enable demandimport!
 demandimport.enable()
 from mercurial import node
 print("node =", f(node))