dangerouslySetInnerHTML not working on <title> tag

I have a page title with coded HTML entities that I would like to render as: “New Post”

It's delivered to React as: “New Post”

For rendering the title on the page I use this code and it works as expected:

<ArticleTitle><span dangerouslySetInnerHTML={{__html: post.title}} /></ArticleTitle>

Returns:

“New Post”

However, when I try to do the same thing for the <title> tag I get an [object Object] returned:

<Helmet>
  <title dangerouslySetInnerHTML={{__html: post.title}} />
</Helmet>

Returns:

<title dangerouslysetinnerhtml="[object Object]" data-react-helmet="dangerouslySetInnerHTML">“New Post” · RAM</title>

There's an original title that is set per page by the server, however as you browse around I'm using React to update it on the client-side. If I remove the server-side <title> tag, no <title> tag is rendered at all by the front end.

Is this issue related to react-helmet or something else going on?