$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/syslinux.git /var/lib/mock/dist-an7-build-34586-16244/root/chroot_tmpdir/scmroot/syslinux
Cloning into '/var/lib/mock/dist-an7-build-34586-16244/root/chroot_tmpdir/scmroot/syslinux'...
$ git reset --hard origin/a7
HEAD is now at b6b6573 import syslinux-4.05-15.el7.src.rpm