$ git clone -n https://src.fedoraproject.org/rpms/rpmgrill.git /var/lib/mock/f40-build-2321968-58622/root/chroot_tmpdir/scmroot/rpmgrill
Cloning into '/var/lib/mock/f40-build-2321968-58622/root/chroot_tmpdir/scmroot/rpmgrill'...
$ git fetch origin 0a1e413ff98f954c5c37bcafc2c1e892484ec747:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpmgrill
 * [new ref]         0a1e413ff98f954c5c37bcafc2c1e892484ec747 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a1e413 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild