Follow-up to r32467: add a regression test.
Follow-up to r32467: add a regression test.

Review by: stsp

* subversion/tests/cmdline/copy_tests.py
  (copy_into_absent_dir):  New test.
  (test_list):  Run it.

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