Why does spacewalk-splice-checkin fail with error "org names may not contain '/' character" ?

Issue

• spacewalk-splice-checkin fails with error message

-bash-4.1$ spacewalk-splice-checkin 
Traceback (most recent call last):
  File "/usr/bin/spacewalk-splice-checkin", line 96, in <module>
    checkin.main(opts)
  File "/usr/lib/python2.6/site-packages/spacewalk_splice_tool/checkin.py", line 275, in main
    spacewalk_sync(options)
  File "/usr/lib/python2.6/site-packages/spacewalk_splice_tool/checkin.py", line 192, in spacewalk_sync
    spacewalk_details = _pull_spacewalk_data(client, utils.get_flatten_orgs(CONFIG))
  File "/usr/lib/python2.6/site-packages/spacewalk_splice_tool/checkin.py", line 152, in _pull_spacewalk_data
    raise Exception("Invalid org names found. Check /var/log/splice/spacewalk_splice_tool.log for more detail.")
Exception: Invalid org names found. Check /var/log/splice/spacewalk_splice_tool.log for more detail.

• /var/log/splice/spacewalk_splice_tool.log

 ERROR: PID 8463 spacewalk_splice_tool.checkin checkin:check_for_invalid_org_names:122      org names may not contain '/' character: test/org1