Version-Release number of selected component:
yum-3.4.3-134.fc21

Additional info:
reporter:       libreport-2.1.12
cmdline:        /usr/bin/python /bin/yum shell
dso_list:       python-libs-2.7.5-11.fc21.x86_64
executable:     /bin/yum
kernel:         3.14.0-0.rc0.git12.1.fc21.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
transaction.py:93:getTsFlags:AttributeError: 'NoneType' object has no attribute 'setFlags'

Traceback (most recent call last):
  File "/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 355, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 174, in main
    result, resultmsgs = base.doCommands()
  File "/usr/share/yum-cli/cli.py", line 570, in doCommands
    return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd, self.extcmds)
  File "/usr/share/yum-cli/yumcommands.py", line 1975, in doCommand
    return base.doShell()
  File "/usr/share/yum-cli/cli.py", line 470, in doShell
    yumshell.cmdloop()
  File "/usr/share/yum-cli/shell.py", line 94, in cmdloop
    cret = cmd.Cmd.cmdloop(self, *args, **kwargs)
  File "/usr/lib64/python2.7/cmd.py", line 142, in cmdloop
    stop = self.onecmd(line)
  File "/usr/lib64/python2.7/cmd.py", line 221, in onecmd
    return func(arg)
  File "/usr/share/yum-cli/shell.py", line 443, in do_run
    (code, msgs) = self.base.buildTransaction()
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1345, in buildTransaction
    self.save_ts(auto=True)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 6701, in save_ts
    msg += "%s\n" % self.ts.getTsFlags()
  File "/usr/lib/python2.7/site-packages/rpmUtils/transaction.py", line 93, in getTsFlags
    curflags = self.ts.setFlags(0)
AttributeError: 'NoneType' object has no attribute 'setFlags'

Local variables in innermost frame:
self: <rpmUtils.transaction.TransactionWrapper instance at 0x2aebc20>