ListGroup.Item no longer getting the "active" class when active in 2.0.0-beta.5

[ishields]

Describe the bug

Between versions 2.0.0-beta.4 and 2.0.0-beta.5, the behavior of defaultActiveId seems broken. When used correctly, the attribute should render an "active" class on the active ListGroup.Item. This no longer appears to be the case.

To Reproduce

In version versions 2.0.0-beta.4:

<ListGroup defaultActiveKey="#link1">
  <ListGroup.Item action href="#link1">
    Link 1
  </ListGroup.Item>
  <ListGroup.Item action href="#link2" disabled>
    Link 2
  </ListGroup.Item>
  <ListGroup.Item action>This one is a button</ListGroup.Item>
</ListGroup>

will render the following html:

Now switch to version 2.0.0-beta.5 (or 2.0.0-beta.6):

The same code renders the following html:

The "active" class is missing from the rendered html and as a result the styles are not correct.

Reproducible Example

versions 2.0.0-beta.4
https://codesandbox.io/s/shy-wildflower-x84k4?file=/src/App.js

Version 2.0.0-beta.5 (or 2.0.0-beta.6)
https://codesandbox.io/s/young-tree-8rxh0?file=/src/App.js

[kyletsang]

Broke during migration to @restart/ui. Need to use the hook instead of the component to get the true active state.