$ git clone -n https://src.fedoraproject.org/rpms/golang-github-lucasjones-reggen.git /var/lib/mock/f40-build-2288154-55771/root/chroot_tmpdir/scmroot/golang-github-lucasjones-reggen
Cloning into '/var/lib/mock/f40-build-2288154-55771/root/chroot_tmpdir/scmroot/golang-github-lucasjones-reggen'...
$ git fetch origin 57fcc21309d62d15433f48df48c5a1e0bbe21dee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-lucasjones-reggen
 * [new ref]         57fcc21309d62d15433f48df48c5a1e0bbe21dee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57fcc21 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild