Mandatory information about my setup:

Have I searched the tickets before posting? Yes
Have I searched the forum before posting? Yes
Have I read the documentation before posting (which pages?)? Yes
Joomla! version: 2.5.14
PHP version: 5.3.3
MySQL version: 5.1.69
CComment version: 5.0.1 Pro
Direct link to the page that shows the issue: http://aleksius.com/joomla/rusifikatory/russkij-i-ukrainskij-yazyk-dlya-core-design-attachments-plugin


Description of my issue:

Hello. On my site I use sh404SEF 4.1.0.1559. With Compojoom comment 4.2.1 Pro everything was normal. But with CComment 5 Pro have a problem. Google Webmasters found a large number of duplicate meta descriptions (Figure 1). This was the result of the fact that on all pages where the comment form CComment 5 Pro at the end of the address added "?_escaped_fragment_=/ccomment". The site works fine. I can not find references with "?_escaped_fragment_=/ccomment" at the end. How Google Webmasters found them - I do not know. In the robots.txt file I wrote:
Disallow: /*com_comment*/
Disallow: /*?_escaped_fragment_=/ccomment*

Hope this helps.
I have two questions.
1) My entry in the robots.txt does not block indexing of comments?
2) It's just I have this problem with "?_escaped_fragment_=/ccomment"? Сan you tell how to solve it?

Thanks in advance for your reply.