$ git clone -n https://gitee.com/src-opencloudos-rpms/libreswan.git /var/lib/mock/dist-oc9-build-118645-69629/root/chroot_tmpdir/scmroot/libreswan
Cloning into '/var/lib/mock/dist-oc9-build-118645-69629/root/chroot_tmpdir/scmroot/libreswan'...
$ git fetch origin 523ce53542955ead82dd69ca0290419b93271d80:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libreswan
 * [new ref]         523ce53542955ead82dd69ca0290419b93271d80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 523ce53 import libreswan-4.15-3.tl4