$ git clone -n https://gitee.com/gcdota930915/rpm.git /var/lib/mock/dist-an8.8-build-285405-64764/root/chroot_tmpdir/scmroot/rpm
Cloning into '/var/lib/mock/dist-an8.8-build-285405-64764/root/chroot_tmpdir/scmroot/rpm'...
$ git fetch origin origin.a8:KOJI_FETCH_HEAD
fatal: couldn't find remote ref origin.a8
$ 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>...]'