$ git clone -n https://gitee.com/opencloudos-stream/perl-Linux-Pid.git /var/lib/mock/dist-oc9-epol-build-85494-57488/root/chroot_tmpdir/scmroot/perl-Linux-Pid
Cloning into '/var/lib/mock/dist-oc9-epol-build-85494-57488/root/chroot_tmpdir/scmroot/perl-Linux-Pid'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Linux-Pid
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ac9297 update