$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/nspr /var/lib/mock/dist-el8-build-6421-108/root/chroot_tmpdir/scmroot/nspr
Cloning into '/var/lib/mock/dist-el8-build-6421-108/root/chroot_tmpdir/scmroot/nspr'...
$ git reset --hard origin/a8
HEAD is now at 3f88e6b import nspr-4.21.0-2.el8_0.src.rpm