$ git clone -n https://src.fedoraproject.org/rpms/rust-zopfli.git /var/lib/mock/f45-build-46398-834/root/chroot_tmpdir/scmroot/rust-zopfli
Cloning into '/var/lib/mock/f45-build-46398-834/root/chroot_tmpdir/scmroot/rust-zopfli'...
$ git fetch origin e31e183a232764080fef7693e3f6611c9528869b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zopfli
 * [new ref]         e31e183a232764080fef7693e3f6611c9528869b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e31e183 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild