$ git clone -n https://src.fedoraproject.org/rpms/emacs-with-editor.git /var/lib/mock/f39-build-1535486-36247/root/chroot_tmpdir/scmroot/emacs-with-editor
Cloning into '/var/lib/mock/f39-build-1535486-36247/root/chroot_tmpdir/scmroot/emacs-with-editor'...
$ git fetch origin f08dd83c949c3f1aec108e7e8d084ec361ca2ad8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-with-editor
 * [new ref]         f08dd83c949c3f1aec108e7e8d084ec361ca2ad8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f08dd83 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild