$ git clone -n https://src.fedoraproject.org/rpms/python-spur.git /var/lib/mock/f45-build-33157-667/root/chroot_tmpdir/scmroot/python-spur
Cloning into '/var/lib/mock/f45-build-33157-667/root/chroot_tmpdir/scmroot/python-spur'...
$ git fetch origin 084506b174b96b1b48a17083c67ce4ebcfc05e05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-spur
 * [new ref]         084506b174b96b1b48a17083c67ce4ebcfc05e05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 084506b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild