Can't use modifiers in array syntax

## Bug Description
Not sure if this is a bug or expected behaviour but this line doesn't work:

```html
{{ pin:event_date format_localized="%A %d %B %Y" }}
```

I have to do this:

```html
{{ pin }}
    <b class="mt-2 mb-4 uppercase">{{ event_date format_localized="%A %d %B %Y"  }}</b>
{{ /pin }}
```
