$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mock.git /var/lib/mock/f40-build-2356344-60307/root/chroot_tmpdir/scmroot/golang-github-mock
Cloning into '/var/lib/mock/f40-build-2356344-60307/root/chroot_tmpdir/scmroot/golang-github-mock'...
$ git fetch origin 52f23ae89329ed47ac5b15fb1ad9a76b33b20e65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mock
 * [new ref]         52f23ae89329ed47ac5b15fb1ad9a76b33b20e65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52f23ae Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild