$ git clone -n https://gitee.com/fundawang/java-1.8.0-alibaba-dragonwell.git /var/lib/mock/dist-an23-build-296764-65797/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell
Cloning into '/var/lib/mock/dist-an23-build-296764-65797/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell'...
$ git fetch origin ea5efc6743302ee766fb6e936595280e163500a0:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/java-1.8.0-alibaba-dragonwell
 * [new ref]         ea5efc6743302ee766fb6e936595280e163500a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea5efc6 8.16.17.382