Regression: Slot is not re-rendering when inside <component>

[AlexandreBonaventure]

Version

3.0.0-rc.7 (still an issue in latest 3.0.0-rc.9)

Reproduction link

https://jsfiddle.net/L8n6vc5j/1/
working case with 3.0.0-rc.6 here: https://jsfiddle.net/L8n6vc5j/3/

Steps to reproduce

Put a reactive value to be rendered inside a slot wrapped by a <component>.
In the fiddle above the contrived example is using :is="''div'" only to illustrate the issue, as it does not make much sense in a real world use-case.

What is expected?

The reactive value change should trigger a render and the slot should be updated

What is actually happening?

the slot is not updating accordingly to the value change

[FrankFang]

#2013
No luck for 3.0.0-rc.6