$ git clone -n https://gitee.com/src-opencloudos-rpms/mcelog /var/lib/mock/dist-oc8-build-58002-15846/root/chroot_tmpdir/scmroot/mcelog
Cloning into '/var/lib/mock/dist-oc8-build-58002-15846/root/chroot_tmpdir/scmroot/mcelog'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mcelog
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dad3032 import mcelog-194-1.tl3