[0.24.2] Button class being overwritten by LinkContainer

[dmason30]

When you have a react-bootstrap Button with a class wrapped in a LinkContainer the className is overwritten.

The classNames used in the below are just for the example I am aware that btn-danger is not needed.

<h2>Home</h2>
<div className="text-danger">Below shows issue with button class being overwritten</div>
<h3>Example class in Button:</h3>
<LinkContainer to="/">
  <Button className="pull-right btn-danger" id="sign_in_forgot_password_button">
    Forgotten your password?
  </Button>
</LinkContainer>

<h3>Example class in LinkContainer:</h3>
<LinkContainer to="/" className="pull-right btn-danger" >
  <Button id="sign_in_forgot_password_button">
    Forgotten your password?
  </Button>
</LinkContainer>

Below is a sandbox that shows this on the '/' (home) route.