$ git clone -n https://src.fedoraproject.org/rpms/64tass.git /var/lib/mock/f40-build-2261612-54444/root/chroot_tmpdir/scmroot/64tass
Cloning into '/var/lib/mock/f40-build-2261612-54444/root/chroot_tmpdir/scmroot/64tass'...
$ git fetch origin 508a36e57eb8ba16d0cd018793c21c7e9cef5e24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/64tass
 * [new ref]         508a36e57eb8ba16d0cd018793c21c7e9cef5e24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 508a36e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild