$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/xorg-x11-drv-dummy.git /var/lib/mock/dist-an7-build-30723-15548/root/chroot_tmpdir/scmroot/xorg-x11-drv-dummy
Cloning into '/var/lib/mock/dist-an7-build-30723-15548/root/chroot_tmpdir/scmroot/xorg-x11-drv-dummy'...
$ git reset --hard origin/a7
HEAD is now at 23aff6f import xorg-x11-drv-dummy-0.3.7-1.el7.1.src.rpm