$ git clone -n https://gitee.com/opencloudos-stream/perl-Net-CIDR.git /var/lib/mock/dist-oc9-epol-build-83998-57271/root/chroot_tmpdir/scmroot/perl-Net-CIDR
Cloning into '/var/lib/mock/dist-oc9-epol-build-83998-57271/root/chroot_tmpdir/scmroot/perl-Net-CIDR'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Net-CIDR
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c06e88 package init