HTML in comments is over-escaped 

To reproduce, submit a comment with special characters. e.g.,

```
This comment has andampersand & some comparison < operators >
```

Expected HTML output in view:
```html
This comment has an ampersand &amp; some comparison &lt; operators &gt;
```

Actual output:
```html
This comment has an ampersand &amp;amp; some comparison &amp;lt; operators &amp;gt;
```