$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-ExtUtils-Manifest.git /var/lib/mock/dist-oc9-build-129751-77951/root/chroot_tmpdir/scmroot/perl-ExtUtils-Manifest
Cloning into '/var/lib/mock/dist-oc9-build-129751-77951/root/chroot_tmpdir/scmroot/perl-ExtUtils-Manifest'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-ExtUtils-Manifest
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 287f1b9 import perl-ExtUtils-Manifest-1.75-4.tl4