$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/mozjs52 /var/lib/mock/dist-an8-build-6759-205/root/chroot_tmpdir/scmroot/mozjs52
Cloning into '/var/lib/mock/dist-an8-build-6759-205/root/chroot_tmpdir/scmroot/mozjs52'...
$ git reset --hard origin/a8
HEAD is now at 9301d18 build: replace python2-for-tests with python2