$ git clone -n https://gitee.com/src-anolis-os/java-1.8.0-openjdk.git /var/lib/mock/dist-an8.8-build-324091-68512/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk
Cloning into '/var/lib/mock/dist-an8.8-build-324091-68512/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk'...
$ git fetch origin a:KOJI_FETCH_HEAD
fatal: couldn't find remote ref a
$ git reset --hard origin/a
fatal: ambiguous argument 'origin/a': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'