$ git clone -n https://src.fedoraproject.org/rpms/dolfin.git /var/lib/mock/f40-build-2686710-68067/root/chroot_tmpdir/scmroot/dolfin
Cloning into '/var/lib/mock/f40-build-2686710-68067/root/chroot_tmpdir/scmroot/dolfin'...
$ git fetch origin 683f8e13b718adc70cdfb5f0502bb41f69beacab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dolfin
 * [new ref]         683f8e13b718adc70cdfb5f0502bb41f69beacab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 683f8e1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild