Description of problem:
I run debuginfo-install midori. I must say that I have a couple of packages from the *-testing repositories.

Version-Release number of selected component:
yum-utils-1.1.31-20.fc20

Additional info:
reporter:       libreport-2.1.12
cmdline:        /usr/bin/python /bin/debuginfo-install midori
dso_list:       yum-3.4.3-135.fc20.noarch
executable:     /bin/debuginfo-install
kernel:         3.13.3-200.fc20.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
__init__.py:2178:doLock:AssertionError

Traceback (most recent call last):
  File "/bin/debuginfo-install", line 197, in <module>
    util = DebugInfoInstall()
  File "/bin/debuginfo-install", line 57, in __init__
    self.main()
  File "/bin/debuginfo-install", line 104, in main
    self.doUtilYumSetup()
  File "/usr/share/yum-cli/utils.py", line 352, in doUtilYumSetup
    self.waitForLock()
  File "/usr/share/yum-cli/cli.py", line 519, in waitForLock
    self.doLock()
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 2178, in doLock
    assert ret == 1
AssertionError

Local variables in innermost frame:
mypid: '13239'
self: <__main__.DebugInfoInstall object at 0x2d7cc10>
ret: 0
oldpid: 13239
lockfile: '/var/run/yum.pid'
root: '/'