$ git clone -n https://gitee.com/src-opencloudos-rpms/nss.git /var/lib/mock/dist-oc9-build-221641-80976/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-oc9-build-221641-80976/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin 23cc9910c815d870e9c8dffbceef090b1cbcca19:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nss
 * [new ref]         23cc9910c815d870e9c8dffbceef090b1cbcca19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23cc991 import nss-3.112-1.tl4