Description of problem:
dnf upgrade

Version-Release number of selected component:
dnf-0.2.17-1.git6a055e6.fc18

Additional info:
cmdline:        /usr/bin/python /bin/dnf upgrade
executable:     /bin/dnf
kernel:         3.7.2-204.fc18.x86_64
uid:            0

Truncated backtrace:
__init__.py:780:yumUtilsMsg:AttributeError: 'YumBaseCli' object has no attribute 'rpmdb'

Traceback (most recent call last):
  File "/bin/dnf", line 35, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 314, in user_main
    errcode = main(args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 182, in main
    (result, resultmsgs) = base.buildTransaction()
  File "/usr/lib/python2.7/site-packages/dnf/yum/__init__.py", line 847, in buildTransaction
    self.yumUtilsMsg(self.logger.critical, "yum-complete-transaction")
  File "/usr/lib/python2.7/site-packages/dnf/yum/__init__.py", line 780, in yumUtilsMsg
    if self.rpmdb.contains(name="yum-utils"):
AttributeError: 'YumBaseCli' object has no attribute 'rpmdb'

Local variables in innermost frame:
prog: 'yum-complete-transaction'
self: <dnf.cli.cli.YumBaseCli object at 0x1f59650>
func: <bound method Logger.critical of <logging.Logger object at 0x1f597d0>>