They found a decision in Russian forum. You have to change code manually. The only mistake is that while printing the page.
joomlaforum.ru/index.php/topic,200322.0.html
To tell the truth I'd like to have the extension solution.
***
Done. To exclude duplicated content in k2 2.5 you should add to the file: components/com_k2/templates/default/item.php. the next code:
<?php
if ($this->item->link!= JRequest::getURI()) JApplication::redirect($this->item->link,'','' ,true);
?>
Now if wrong url is inserted it is ruled to the correct url
You can see here:
studyplanet.by
The only problem not solved is Print button.
