$ git clone -n https://src.fedoraproject.org/rpms/golang-github-google-martian.git /var/lib/mock/f38-build-side-42-init-devel-712965-27259/root/chroot_tmpdir/scmroot/golang-github-google-martian
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-712965-27259/root/chroot_tmpdir/scmroot/golang-github-google-martian'...
$ git fetch origin e5c38a2307744fc9b15e6c34ddc689e6ba6631b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-google-martian
 * [new ref]         e5c38a2307744fc9b15e6c34ddc689e6ba6631b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5c38a2 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild