Format breaks subsequent code

When I format code, which has '?>' in it, all subsequent code is is formatted badly.

```php
<?php

$xmldata .= '?>';

$test = true;

if ($test) {
    echo "hi";
}
``` 
==>
```php
<?php

$xmldata .= '?>';

$test = true;

if ($test) {
echo "hi";
}
```
As you might expect, this behaviour appeared building xml data. (`<?xml version="1.0" encoding="UTF-8"?>`)