$ git clone -n https://src.fedoraproject.org/rpms/libvirt-python.git /var/lib/mock/f41-build-side-1-2647723-27311/root/chroot_tmpdir/scmroot/libvirt-python
Cloning into '/var/lib/mock/f41-build-side-1-2647723-27311/root/chroot_tmpdir/scmroot/libvirt-python'...
$ git fetch origin 8aa9f7a12f8381684ca6addc90745a8e3d6d27aa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libvirt-python
 * [new ref]         8aa9f7a12f8381684ca6addc90745a8e3d6d27aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8aa9f7a libvirt-python-10.7.0-1