$ git clone -n https://gitee.com/src-opencloudos-rpms/libreswan.git /var/lib/mock/dist-oc9-build-243295-83105/root/chroot_tmpdir/scmroot/libreswan
Cloning into '/var/lib/mock/dist-oc9-build-243295-83105/root/chroot_tmpdir/scmroot/libreswan'...
$ git fetch origin bb505a196b77e533023d71392881369de0c78d05:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libreswan
 * [new ref]         bb505a196b77e533023d71392881369de0c78d05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb505a1 import libreswan-4.15-5.tl4