$ git clone -n https://gitee.com/src-opencloudos-rpms/nss.git /var/lib/mock/dist-oc8-build-66465-16711/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-oc8-build-66465-16711/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin c999198fd79d50436a3471666b3ee595360d1d17:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nss
 * [new ref]         c999198fd79d50436a3471666b3ee595360d1d17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c999198 import nss-3.90.0-4.tl3