Description of problem:
Runned `bodhi -T`, always reproducable.

Version-Release number of selected component:
bodhi-client-0.9.3-1.fc18

Additional info:
cmdline:        /usr/bin/python -tt /usr/bin/bodhi -T
executable:     /usr/bin/bodhi
kernel:         3.6.11-3.fc18.x86_64
uid:            1000

Truncated backtrace:
__init__.py:1905:_callMethod:GenericError: No such entry in table tag: dist-f18-updates-testing

Traceback (most recent call last):
  File "/usr/bin/bodhi", line 523, in <module>
    main()
  File "/usr/bin/bodhi", line 346, in main
    for update in bodhi.testable():
  File "/usr/lib/python2.7/site-packages/fedora/client/bodhi.py", line 215, in testable
    builds = self.get_koji_session(login=False).listTagged(tag, latest=True)
  File "/usr/lib/python2.7/site-packages/koji/__init__.py", line 1543, in __call__
    return self.__func(self.__name,args,opts)
  File "/usr/lib/python2.7/site-packages/koji/__init__.py", line 1905, in _callMethod
    raise err
GenericError: No such entry in table tag: dist-f18-updates-testing

Local variables in innermost frame:
args: ('dist-f18-updates-testing',)
name: 'listTagged'
err: GenericError('No such entry in table tag: dist-f18-updates-testing',)
fault: <Fault 1000: 'No such entry in table tag: dist-f18-updates-testing'>
self: <koji.ClientSession object at 0x2196d10>
interval: 20
request: "<?xml version='1.0'?>\n<methodCall>\n<methodName>listTagged</methodName>\n<params>\n<param>\n<value><string>dist-f18-updates-testing</string></value>\n</param>\n<param>\n<value><struct>\n<member>\n<name>__starstar</name>\n<value><boolean>1</boolean></value>\n</member>\n<member>\n<name>latest</name>\n<value><boolean>1</boolean></value>\n</member>\n</struct></value>\n</param>\n</params>\n</methodCall>\n"
tries: 1
headers: [('User-Agent', 'koji/1.7'), ('Content-Type', 'text/xml'), ('Content-Length', 383)]
max_retries: 30
handler: '/kojihub'
kwargs: {'latest': True}
debug: False