Description of problem:
I launched anaconda and confirmed "I accept my fate.''.

Version-Release number of selected component:
anaconda-20.3-1.fc20.x86_64

The following was filed automatically by anaconda:
anaconda 20.3-1 exception report
Traceback (most recent call first):
  File "/usr/lib/python2.7/site-packages/pykickstart/commands/method.py", line 51, in __getattr__
    return getattr(self.handler.url, name)
  File "/usr/lib/python2.7/site-packages/pykickstart/commands/method.py", line 76, in __getattr__
    return FC3_Method.__getattr__(self, name)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/packaging/livepayload.py", line 71, in setup
    osimg = storage.devicetree.getDeviceByPath(self.data.method.partition)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/packaging/__init__.py", line 671, in payloadInitialize
    payload.setup(storage)
  File "/usr/lib64/python2.7/threading.py", line 764, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/threads.py", line 168, in run
    threading.Thread.run(self, *args, **kwargs)
AttributeError: 'F18_Url' object has no attribute 'partition'

Additional info:
cmdline:        /usr/bin/python  /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-osimg-min --lang en_US.UTF-8
cmdline_file:   initrd=initrd0.img root=live:CDLABEL=Fedora-20-Nightly-x86_64-Live-de rootfstype=auto ro rd.live.image quiet  rhgb rd.luks=0 rd.md=0 rd.dm=0  BOOT_IMAGE=vmlinuz0 
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.11.0-0.rc2.git3.1.fc20.x86_64
other involved packages: python-libs-2.7.5-3.fc20.x86_64, pykickstart-1.99.34-1.fc20.noarch
product:        Fedora
release:        Fedora release 20 (Rawhide)
type:           anaconda
version:        rawhide