$ git clone -n https://gitee.com/gcdota930915/openhpi.git /var/lib/mock/dist-an8.7-build-181397-59740/root/chroot_tmpdir/scmroot/openhpi
Cloning into '/var/lib/mock/dist-an8.7-build-181397-59740/root/chroot_tmpdir/scmroot/openhpi'...
$ git reset --hard origin/a8-poc
fatal: ambiguous argument 'origin/a8-poc': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'