$ git clone -n https://src.fedoraproject.org/rpms/emacs-goodies.git /var/lib/mock/f45-build-8086-376/root/chroot_tmpdir/scmroot/emacs-goodies
Cloning into '/var/lib/mock/f45-build-8086-376/root/chroot_tmpdir/scmroot/emacs-goodies'...
$ git fetch origin 9321c69c36ef00e65c6077f6e92baa340a570d46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-goodies
 * [new ref]         9321c69c36ef00e65c6077f6e92baa340a570d46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9321c69 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild