Fix the copy_tests.py 47 failure on the Windows buildbot.
Fix the copy_tests.py 47 failure on the Windows buildbot.

* subversion/libsvn_client/copy.c
  (do_wc_to_wc_copies, do_wc_to_wc_moves):
      Open the root adm access batons in the working copy context to make
      it possible to release the wc.db handle before deleting it.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion