fixed bug signaled by Zbigniew Lukasiak : -and => [{}, {foo => 1}]
-rw-r--r-- Changes
-rw-r--r-- INSTALL
-rw-r--r-- MANIFEST
-rw-r--r-- MANIFEST.SKIP
-rw-r--r-- Makefile.PL
drwxr-xr-x lib
drwxr-xr-x t