$ git clone -n https://src.fedoraproject.org/rpms/bsf.git /var/lib/mock/f40-build-2274805-55030/root/chroot_tmpdir/scmroot/bsf
Cloning into '/var/lib/mock/f40-build-2274805-55030/root/chroot_tmpdir/scmroot/bsf'...
$ git fetch origin 3eeabaa808038883ff239f0fd0f42d69613876f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bsf
 * [new ref]         3eeabaa808038883ff239f0fd0f42d69613876f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3eeabaa Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild