$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/libtar /var/lib/mock/dist-el8-build-4658-34/root/chroot_tmpdir/scmroot/libtar
Cloning into '/var/lib/mock/dist-el8-build-4658-34/root/chroot_tmpdir/scmroot/libtar'...
$ git reset --hard origin/a8
HEAD is now at 2f667df import libtar-1.2.20-15.el8.src.rpm