Add a test for the bug that was fixed in r14612.
Add a test for the bug that was fixed in r14612.

* subversion/tests/clients/cmdline/lock_tests.py
  (commit_propchange): New test.
  (commit_file_keep_lock, commit_file_unlock): Replace commit_file.
  (test_list): Update.

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