MDX formatter adding semicolon to JSX code blocks

Prettier 1.15.1 (Seems like the playground doesn’t support MDX yet?)

# Options (if any):
Default options

Input: test.mdx:

This is a MDX file!

```jsx
<Button />
``` 

Output:

This is a MDX file!

```jsx
<Button />;
```

Expected behavior:

This is a MDX file!

```jsx
<Button />
```

This seems related to https://github.com/prettier/prettier/issues/3196 and https://github.com/prettier/prettier/pull/3330.

---

Thanks for the help!

[danoc]

Ah, yes. Sorry if that wasn’t originally clear.

[duailibe]

Your code inserts a JSX-formatted code block instead of rendering the JSX

That’s exactly what @danoc described in the issue, and Prettier is inserting a semicolon