Description of problem:
yum groupinstall "KDE Plasma Workspace"

Traceback after last verify:
  Verifying  : appmenu-qt-0.2.6-3.fc19.x86_64                                           227/227 

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 316, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 219, in main
    return_code = base.doTransaction()
  File "/usr/share/yum-cli/cli.py", line 697, in doTransaction
    resultobject = self.runTransaction(cb=cb)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1763, in runTransaction
    self.igroups.save()
  File "/usr/lib/python2.7/site-packages/yum/igroups.py", line 148, in save
    self._write_grp_grps()
  File "/usr/lib/python2.7/site-packages/yum/igroups.py", line 175, in _write_grp_grps
    if self.groups[grpname].environment == evgrp.evgid:
KeyError: 'kde-apps'

Version-Release number of selected component:
yum-3.4.3-81.fc19

Additional info:
cmdline:        /usr/bin/python /bin/yum groupinstall 'KDE Plasma Workspaces'
executable:     /bin/yum
kernel:         3.9.0-0.rc5.git1.301.fc19.x86_64
runlevel:       N 5
uid:            0
ureports_counter: 1

Truncated backtrace:
igroups.py:175:_write_grp_grps:KeyError: 'kde-apps'

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 316, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 219, in main
    return_code = base.doTransaction()
  File "/usr/share/yum-cli/cli.py", line 697, in doTransaction
    resultobject = self.runTransaction(cb=cb)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1763, in runTransaction
    self.igroups.save()
  File "/usr/lib/python2.7/site-packages/yum/igroups.py", line 148, in save
    self._write_grp_grps()
  File "/usr/lib/python2.7/site-packages/yum/igroups.py", line 175, in _write_grp_grps
    if self.groups[grpname].environment == evgrp.evgid:
KeyError: 'kde-apps'

Local variables in innermost frame:
self: <yum.igroups.InstalledGroups object at 0x2edd690>
grpname: 'kde-apps'
fo: <open file '/var/lib/yum/groups/environment.tmp', mode 'w' at 0x60e6f60>
evgrp: <yum.igroups.InstalledEnvironment object at 0x41b38d0>