[libvirt] problems with <seclabel> when restarting libvirtd

I had libvirtd build from 0.9.2+something running on my test machine. There was a single guest running on it. I grabbed the latest libvirt from git (0.9.3+??), built an rpm, and installed it. My guest reconnected with no problems, but I was unable to start new guests due to an selinux problem with the labeling of the image file. Interestingly, I found that I could shutdown and restart the one guest that had been running at the time of the upgrade. *Until* I restarted libvirtd again while the guest was stopped. After this point, I could no longer start that guest either. I then set selinux to permissive mode and was able to start my original guest. Then I restarted libvirtd and found that, although the qemu-kvm process was still running, libvirtd couldn't reconnect to the guest. When I looked at the logs, I saw this: error: virSecurityLabelDefParseXML:5073 : unsupported configuration: dynamic label type must use resource relabeling In the domain state file, I see this: | <seclabel type='dynamic' model='selinux' relabel='no'> | <label>system_u:system_r:svirt_t:s-:c419,c955</label> | </seclabel> The data in the state file was written by the same version of libvirtd that wrote it. So why did it write something it knows it doesn't support?