$ git clone -n https://gitee.com/lxpzlm/subversion.git /var/lib/mock/dist-an8.6-build-91238-45350/root/chroot_tmpdir/scmroot/subversion Cloning into '/var/lib/mock/dist-an8.6-build-91238-45350/root/chroot_tmpdir/scmroot/subversion'... $ 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 [...] -- [...]'