Ref.current is null in modal after upgrading to 8.0.0

[Phibedy]

Issue description

• components: Modal
• reactstrap version #7.1.0 vs #8.0.0
• import method umd/csj/es
• react version #16.8.6
• bootstrap version #4.3.1

What is happening?

I would like to autofocus some input in a modal but, after upgrading from 7.1.0 to 8.0.0 React.createRefs().current are null in componentDidUpdate. If I downgrade to 7.1.0 they are set properly. Are there some changes not mentioned in the changelog or is there some bug?

[syxolk]

To make it more clear: Reactstrap 8.0.0 does not seem to mount a Modal's children anymore before it is opened for the first time. In Reactstrap 7.1.0 children were mounted by default.