Filter "Convert URLs into links" doesn't support multilingual web addresses

Hello,

I have a problem with the "Convert URLs into links" filter in drupal 7:

I have this filter activated for the "Full HTML" text format. If I create a new page and enter a URL with special characters (for example ä, ü, ö), the resulting clickable URL is formatted wrongly.

Example:
I create a new page with the following text:

www.test.de
www.daniel-müller.de

The sourcecode of the resulting page looks like this:

<a href="http://www.test.de">www.test.de</a>
<a href="http://www.daniel-m">www.daniel-m</a>üller.de

Problem: If there is a special character (like the 'ü' in the second URL), the clickable URL is cut off just before the special character.

Is this a general problem with drupal 7 or something in my server / drupal - configuration?

Current Status

This has been committed to Drupal 8. For Drupal 7, the patch in #39 seems to work for people but unless/until we provide a fallback as mentioned in #23, this issue is blocked from being included in Drupal 7 core.