$ git clone -n https://gitee.com/src-opencloudos-rpms/libreswan.git /var/lib/mock/dist-oc9-build-251773-84141/root/chroot_tmpdir/scmroot/libreswan
Cloning into '/var/lib/mock/dist-oc9-build-251773-84141/root/chroot_tmpdir/scmroot/libreswan'...
$ git fetch origin 1046e4f4e070bc981d6d5496e2e3ef53c37cfbd1:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libreswan
 * [new ref]         1046e4f4e070bc981d6d5496e2e3ef53c37cfbd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1046e4f import libreswan-4.15-7.tl4