$ git clone -n https://src.fedoraproject.org/rpms/emacs-dockerfile-mode.git /var/lib/mock/f45-build-8069-376/root/chroot_tmpdir/scmroot/emacs-dockerfile-mode
Cloning into '/var/lib/mock/f45-build-8069-376/root/chroot_tmpdir/scmroot/emacs-dockerfile-mode'...
$ git fetch origin 2fe11c650ddc1176b4768b3f5d9a994d02907fe6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-dockerfile-mode
 * [new ref]         2fe11c650ddc1176b4768b3f5d9a994d02907fe6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fe11c6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild