$ git clone -n https://src.fedoraproject.org/rpms/libvirt-glib.git /var/lib/mock/f45-build-17220-497/root/chroot_tmpdir/scmroot/libvirt-glib
Cloning into '/var/lib/mock/f45-build-17220-497/root/chroot_tmpdir/scmroot/libvirt-glib'...
$ git fetch origin 411d1c7690ee272c2000aa7a5bf1874ad7f09c53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libvirt-glib
 * [new ref]         411d1c7690ee272c2000aa7a5bf1874ad7f09c53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 411d1c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild