$ git clone -n https://src.fedoraproject.org/rpms/golang-github-martini.git /var/lib/mock/f38-build-side-42-init-devel-598059-26162/root/chroot_tmpdir/scmroot/golang-github-martini
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-598059-26162/root/chroot_tmpdir/scmroot/golang-github-martini'...
$ git fetch origin bc67790cde844104cc1e46a5ee306992c9e8d1c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-martini
 * [new ref]         bc67790cde844104cc1e46a5ee306992c9e8d1c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc67790 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild