$ git clone -n https://gitee.com/src-opencloudos-rpms/gnupg2.git /var/lib/mock/dist-oc9-build-126012-75612/root/chroot_tmpdir/scmroot/gnupg2
Cloning into '/var/lib/mock/dist-oc9-build-126012-75612/root/chroot_tmpdir/scmroot/gnupg2'...
$ git fetch origin 4dcd951fb65d4ed282069dbc5b459a417eb89cfa:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gnupg2
 * [new ref]         4dcd951fb65d4ed282069dbc5b459a417eb89cfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4dcd951 import gnupg2-2.4.3-6.tl4