Created attachment 607196 [details] demo of the bug Currently, the authentication dialog does not allow for selectively allowing desired auth. engine -- simply because it is not clear which one (in case there are more) is currently in question. See attached demo -- you cannot say whether first auth. dialog relates to QEMU/libvirt or LXC.
$ rpm -q virt-manager virt-manager-0.9.4-1.fc17.noarch
*** This bug has been marked as a duplicate of bug 749750 ***