$ git clone -n https://src.fedoraproject.org/rpms/emacs-goto-chg.git /var/lib/mock/f40-build-2196365-51571/root/chroot_tmpdir/scmroot/emacs-goto-chg
Cloning into '/var/lib/mock/f40-build-2196365-51571/root/chroot_tmpdir/scmroot/emacs-goto-chg'...
$ git fetch origin 494142cc8b49a29b11d69e5b727b17a0b17e0edf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-goto-chg
 * [new ref]         494142cc8b49a29b11d69e5b727b17a0b17e0edf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 494142c Orphaned for 6+ weeks