Following up on r1589184, extend fix to also handle the excluded states.

* subversion/libsvn_wc/wc_db.c
  (cross_db_copy): Don't retrieve pristing properties on excluded nodes.

* subversion/tests/cmdline/copy_tests.py
  (ext_wc_copy_deleted): Extend test.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1589188 13f79535-47bb-0310-9956-ffa450edef68