$ git clone -n https://src.fedoraproject.org/rpms/authselect.git /var/lib/mock/f40-build-786613-134469/root/chroot_tmpdir/scmroot/authselect
Cloning into '/var/lib/mock/f40-build-786613-134469/root/chroot_tmpdir/scmroot/authselect'...
$ git fetch origin 75804fe41e0c59bda74e55d3b4ade5d28838b94a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/authselect
 * [new ref]         75804fe41e0c59bda74e55d3b4ade5d28838b94a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75804fe spec: strengthen altfiles sed invocation