$ git clone -n https://gitee.com/src-opencloudos-rpms/java-1.8.0-openjdk.git /var/lib/mock/dist-oc8-build-247676-83614/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk
Cloning into '/var/lib/mock/dist-oc8-build-247676-83614/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk'...
$ git fetch origin a909c562bfbbb7f364f12ed664c3be07e1898d9b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/java-1.8.0-openjdk
 * [new ref]         a909c562bfbbb7f364f12ed664c3be07e1898d9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a909c56 import java-1.8.0-openjdk-1.8.0.504.b01-1.1.tl3