$ git clone -n https://src.fedoraproject.org/rpms/fastbit.git /var/lib/mock/f40-build-2285362-55675/root/chroot_tmpdir/scmroot/fastbit
Cloning into '/var/lib/mock/f40-build-2285362-55675/root/chroot_tmpdir/scmroot/fastbit'...
$ git fetch origin 1b6d68e7b467960d00aa01da2fe32ebe92187dac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fastbit
 * [new ref]         1b6d68e7b467960d00aa01da2fe32ebe92187dac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b6d68e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild