$ git clone -n https://src.fedoraproject.org/rpms/emacs-dash.git /var/lib/mock/f45-build-8072-376/root/chroot_tmpdir/scmroot/emacs-dash
Cloning into '/var/lib/mock/f45-build-8072-376/root/chroot_tmpdir/scmroot/emacs-dash'...
$ git fetch origin 987a7f418cd477214ab2d907ea157a12624eaccb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-dash
 * [new ref]         987a7f418cd477214ab2d907ea157a12624eaccb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 987a7f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild