$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/mozjs52 /var/lib/mock/dist-el8-build-778-27/root/chroot_tmpdir/scmroot/mozjs52
Cloning into '/var/lib/mock/dist-el8-build-778-27/root/chroot_tmpdir/scmroot/mozjs52'...
$ git reset --hard origin/a8
HEAD is now at aef96aa import mozjs52-52.9.0-2.el8.src.rpm