$ git clone -n https://src.fedoraproject.org/rpms/golang-github-docopt.git /var/lib/mock/f45-build-11868-435/root/chroot_tmpdir/scmroot/golang-github-docopt
Cloning into '/var/lib/mock/f45-build-11868-435/root/chroot_tmpdir/scmroot/golang-github-docopt'...
$ git fetch origin 1683066baa8876a5bb1a457e7b306c379a60268c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-docopt
 * [new ref]         1683066baa8876a5bb1a457e7b306c379a60268c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1683066 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild