system config crash on startup with a KeyError on lvm_model.py line 348

Issue

system-config-lvm crash on startup with the following traceback:
Traceback (most recent call last):
File "/usr/sbin/system-config-lvm", line 173, in ? runFullGUI()
File "/usr/sbin/system-config-lvm", line 158, in runFullGUI blvm = baselvm(glade_xml, app)
File "/usr/sbin/system-config-lvm", line 108, in __init__self.volume_tab_view = Volume_Tab_View(glade_xml, self.lvmm,self.main_win)
File "/usr/share/system-config-lvm/Volume_Tab_View.py", line 133, in __init__self.prepare_tree()
File "/usr/share/system-config-lvm/Volume_Tab_View.py", line 214, in prepare_tree self.model_factory.reload()
File "/usr/share/system-config-lvm/lvm_model.py", line 164, in reload self.\__PVs = self.__query_partitions()
File "/usr/share/system-config-lvm/lvm_model.py", line 261, in \__query_partitions for pv in self.\__query_PVs():
File "/usr/share/system-config-lvm/lvm_model.py", line 348, in \__query_PVs    self.\__VGs[vgname].add_pv(pv)
KeyError: 'rootvg'