$ git clone -n https://src.fedoraproject.org/rpms/emacs-flycheck.git /var/lib/mock/f45-build-8085-376/root/chroot_tmpdir/scmroot/emacs-flycheck
Cloning into '/var/lib/mock/f45-build-8085-376/root/chroot_tmpdir/scmroot/emacs-flycheck'...
$ git fetch origin 9f940181a8b6cc769c2f10b90b756f8bbbbc1d38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-flycheck
 * [new ref]         9f940181a8b6cc769c2f10b90b756f8bbbbc1d38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f94018 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild