$ git clone -n https://gitee.com/src-anolis-os/libxml2.git /var/lib/mock/dist-an8.8-build-299523-65890/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an8.8-build-299523-65890/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin libxml2:KOJI_FETCH_HEAD
fatal: couldn't find remote ref libxml2
$ git reset --hard origin/libxml2
fatal: ambiguous argument 'origin/libxml2': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'