Version

3.0.0-rc.10

Reproduction link

https://jsfiddle.net/q8nmp1w7/

Steps to reproduce

Open jsfiddle See console. Instead of 4 elements of components, I get one Symbol(Fragment) element It breaks my components because I need to process slots

What is expected?

Get correct elements

What is actually happening?

I get Symbol(Fragment) element

Duplicate of https://github.com/vuejs/vue-next/issues/2054