$ git clone -n https://gitee.com/opencloudos-stream/perl-JSON-MaybeXS.git /var/lib/mock/dist-oc9-epol-build-93817-59487/root/chroot_tmpdir/scmroot/perl-JSON-MaybeXS
Cloning into '/var/lib/mock/dist-oc9-epol-build-93817-59487/root/chroot_tmpdir/scmroot/perl-JSON-MaybeXS'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-JSON-MaybeXS
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05a3a4a update