$ git clone -n https://gitee.com/src-opencloudos-rpms/nss.git /var/lib/mock/dist-oc8-build-210431-80603/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-oc8-build-210431-80603/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin af3e0b58d0923c1a2f006fd53681f55a05450c54:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nss
 * [new ref]         af3e0b58d0923c1a2f006fd53681f55a05450c54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af3e0b5 import nss-3.112.0-4.tl3