$ git clone -n https://src.fedoraproject.org/rpms/emacs-flycheck-pycheckers.git /var/lib/mock/f45-build-8088-376/root/chroot_tmpdir/scmroot/emacs-flycheck-pycheckers
Cloning into '/var/lib/mock/f45-build-8088-376/root/chroot_tmpdir/scmroot/emacs-flycheck-pycheckers'...
$ git fetch origin 98d99c4a84c96b0a7636cff0f0e45de46bc7b602:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-flycheck-pycheckers
 * [new ref]         98d99c4a84c96b0a7636cff0f0e45de46bc7b602 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98d99c4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild