--- /dev/null
+#!/bin/sh -ex
+
+ceph mds set allow_new_snaps true --yes-i-really-mean-it
+
+# this tests fix for #1399
+mkdir foo
+mkdir foo/.snap/one
+touch bar
+mv bar foo
+sync
+# should not crash :)
+
+mkdir baz
+mkdir baz/.snap/two
+mv baz foo
+sync
+# should not crash :)
+
+# clean up.
+rmdir foo/baz/.snap/two
+rmdir foo/.snap/one
+rm -r foo
+
+echo OK
\ No newline at end of file