--- a/tests/test-lfs-serve.t	Tue Apr 10 22:57:55 2018 -0400
+++ b/tests/test-lfs-serve.t	Sat Apr 07 22:40:11 2018 -0400
@@ -35,6 +35,7 @@
   $ cat >> $HGRCPATH <<EOF
   > [lfs]
   > url=file:$TESTTMP/dummy-remote/
+  > usercache = null://
   > threshold=10
   > [web]
   > allow_push=*