$ git clone -n https://gitee.com/src-anolis-os/relaxngcc.git /var/lib/mock/dist-an7-build-61836-34082/root/chroot_tmpdir/scmroot/relaxngcc
Cloning into '/var/lib/mock/dist-an7-build-61836-34082/root/chroot_tmpdir/scmroot/relaxngcc'...
$ git reset --hard origin/a7
HEAD is now at 5bc85d0 import relaxngcc-1.12-6.el7.src.rpm