$ git clone -n https://src.fedoraproject.org/rpms/python-dijitso.git /var/lib/mock/f45-build-30331-644/root/chroot_tmpdir/scmroot/python-dijitso
Cloning into '/var/lib/mock/f45-build-30331-644/root/chroot_tmpdir/scmroot/python-dijitso'...
$ git fetch origin b96bc0e273f973930d5bcfcb00fdca03a31ef6e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-dijitso
 * [new ref]         b96bc0e273f973930d5bcfcb00fdca03a31ef6e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b96bc0e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild