Twig truncate()和slice()返回一个带有html实体名称的字符串

I have a string with 69 characters:

This is a test with characters like € or "like this". How 'bout that?

I use CKEditor in my form and make the word 'test' bold. This is how it is saved it the database:

<p>This is a <strong>test </strong>with characters like &euro; or &quot;like this&quot;. How &#39;bout that?</p>

If I want to show the string without any markup I use the Twig-filters striptags and raw after each other which results in:

This is a test with characters like € or "like this". How 'bout that?

Now of the original string I want to show the first 65 characters without any styling. I use the Twig-filter truncate (65). This is my code in Twig:

{{ string | striptags | raw | truncate (65) }}

My result is

This is a test with characters like &euro; or &quot;like this&quo...

As you can see the special characters are shown as their HTML entity name, even though I only added the truncate filter. Is this a bug or should this be expected? The same thing happens when I use the slice filter.

My result should be:

This is a test with characters like € or "like this". How 'bout 

EDIT: I understand what the issue is now. When using the raw filter on a string this does not mean any of the original characters from that string (i.e. the HTML entity names) will not be counted when using slice or truncate filter. I still have not found a solution though.