$ git clone -n https://src.fedoraproject.org/rpms/golang-github-spkg-bom.git /var/lib/mock/f40-build-2573436-62241/root/chroot_tmpdir/scmroot/golang-github-spkg-bom
Cloning into '/var/lib/mock/f40-build-2573436-62241/root/chroot_tmpdir/scmroot/golang-github-spkg-bom'...
$ git fetch origin 3b700cbadab217c91abedefd5a00b7b23f54c5be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-spkg-bom
 * [new ref]         3b700cbadab217c91abedefd5a00b7b23f54c5be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b700cb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild