$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/dde-rpm/dde-api.git /var/lib/mock/dist-an8-dde-build-18525-8280/root/chroot_tmpdir/scmroot/dde-api
Cloning into '/var/lib/mock/dist-an8-dde-build-18525-8280/root/chroot_tmpdir/scmroot/dde-api'...
warning: You appear to have cloned an empty repository.
$ git reset --hard origin/a8
fatal: ambiguous argument 'origin/a8': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'