$ git clone -n https://gitee.com/src-opencloudos-rpms/nss.git /var/lib/mock/dist-oc9-build-118364-69295/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-oc9-build-118364-69295/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin 2ec593538fdf9bc06e45439d6c0fdcd1bb9b8a5a:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nss
 * [new ref]         2ec593538fdf9bc06e45439d6c0fdcd1bb9b8a5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ec5935 import nss-3.105-1.tl4