$ git clone -n https://src.fedoraproject.org/rpms/emacs-common-ess.git /var/lib/mock/f38-build-side-42-init-devel-1256848-30642/root/chroot_tmpdir/scmroot/emacs-common-ess
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1256848-30642/root/chroot_tmpdir/scmroot/emacs-common-ess'...
$ git fetch origin e0c362457339ac460ed4f7efa5864a14bd09e8dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-common-ess
 * [new ref]         e0c362457339ac460ed4f7efa5864a14bd09e8dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0c3624 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild