Libvirt + Debian Live = Heart Attack

Hi everyone! I've built a Debian Live ISO with packages qemu and libvirt to run a VM in the live environment. The guest images are placed in /var/lib/libvirt/images and 2GB each. Everything works great, except for one issue. When starting a VM, libvirt automatically issues a chown command to the images, changing ownership. This results in a copy of the images being created in /run/live/overlay/rw/var/lib/libvirt/images I don't want these copies to be made but can't stop it. I've tried editing qemu.conf user/group, dynamic ownership etc. without any luck. Is there a way to STOP libvirt from changing the ownership of these images?