$ git clone -n https://gitee.com/wency_cn/javapackages-bootstrap.git /var/lib/mock/dist-an23-build-502502-74802/root/chroot_tmpdir/scmroot/javapackages-bootstrap
Cloning into '/var/lib/mock/dist-an23-build-502502-74802/root/chroot_tmpdir/scmroot/javapackages-bootstrap'...
$ git fetch origin 3ad0808c709f849c3895ab7e8b92932b959cf0b7:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/javapackages-bootstrap
 * [new ref]         3ad0808c709f849c3895ab7e8b92932b959cf0b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ad0808 Update code from upstream