$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/istack-commons.git /var/lib/mock/dist-an7-build-34774-16396/root/chroot_tmpdir/scmroot/istack-commons
Cloning into '/var/lib/mock/dist-an7-build-34774-16396/root/chroot_tmpdir/scmroot/istack-commons'...
$ git reset --hard origin/a7
HEAD is now at eb583ca import istack-commons-2.17-4.el7.src.rpm