$ git clone -n https://gitee.com/src-opencloudos-rpms/java-1.8.0-openjdk /var/lib/mock/dist-oc8-build-56923-15178/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk
Cloning into '/var/lib/mock/dist-oc8-build-56923-15178/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/java-1.8.0-openjdk
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 429b4f0 import java-1.8.0-openjdk-1.8.0.392.b08-4.tl3