$ git clone -n https://gitee.com/src-opencloudos-rpms/crash-gcore-command.git /var/lib/mock/dist-oc9-build-120615-71384/root/chroot_tmpdir/scmroot/crash-gcore-command
Cloning into '/var/lib/mock/dist-oc9-build-120615-71384/root/chroot_tmpdir/scmroot/crash-gcore-command'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/crash-gcore-command
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22919d0 import crash-gcore-command-1.6.4-5.tl4