$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/grub2.git /var/lib/mock/dist-an7-build-37858-17907/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an7-build-37858-17907/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard origin/a19af738383f089d3c85f567df090b23195d508f
fatal: ambiguous argument 'origin/a19af738383f089d3c85f567df090b23195d508f': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'