__getstate__ and __getnewargs__ should not require getting out of Ghost state...

__getstate__ and __getnewargs__ should not require getting out of Ghost state as they're defined on Base


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@39455 20353a03-c40f-0410-a6d1-a30d3c3de9de