SSR报错[@vue/server-renderer] Invalid VNode type: Symbol(Fragment) (symbol)

当ssr组件中使用v-for的时候会报错，我大概查了下这就是个官方的issue：

https://github.com/vuejs/core/issues/2600

大概意思就是有2个vue，核心报错的源码开发环境下在源码里的：

server-rendr.cjs.js

function renderVNode(push, vnode, parentComponent, slotScopeId) {
    const { type, shapeFlag, children } = vnode;
    switch (type) {
        case vue.Text:
            push(shared.escapeHtml(children));
            break;
        case vue.Comment:
            push(children ? `<!--${shared.escapeHtmlComment(children)}-->` : `<!---->`);
            break;
        case vue.Static:
            push(children);
            break;
        case vue.Fragment:
            if (vnode.slotScopeIds) {
                slotScopeId =
                    (slotScopeId ? slotScopeId + ' ' : '') + vnode.slotScopeIds.join(' ');
            }
            push(`<!--[-->`); // open
            renderVNodeChildren(push, children, parentComponent, slotScopeId);
            push(`<!--]-->`); // close
            break;
        default:
            if (shapeFlag & 1 /* ELEMENT */) {
                renderElementVNode(push, vnode, parentComponent, slotScopeId);
            }
            else if (shapeFlag & 6 /* COMPONENT */) {
                push(renderComponentVNode(vnode, parentComponent, slotScopeId));
            }
            else if (shapeFlag & 64 /* TELEPORT */) {
                renderTeleportVNode(push, vnode, parentComponent, slotScopeId);
            }
            else if (shapeFlag & 128 /* SUSPENSE */) {
                renderVNode(push, vnode.ssContent, parentComponent, slotScopeId);
            }
            else {
                vue.warn('[@vue/server-renderer] Invalid VNode type:', type, `(${typeof type})`);
            }
    }
}

断点看了下，v-for时的shapeflag为16，这里无法解析

老师也可以帮忙看下一起看下这个问题