New BackLink Check query for Google?

Google's Help gives out a new query string for link checking..?

[a_chameleon]

I received from [e-mail], a response to a "re-include" request (thought the site was gone) this AM.

The link's string was [edited]:

[google.com...]

and on the page was the ubiqtuous..

Find web pages that link to www.my-domain.com/

However, when I clicked this link, the following query was entered in the [Google Search] text box..

link:xGRAnwvXqb4J:www.my-domain.com/

Is this a new search query for who links to you checking..

?

[vitaplease]

z-LaVxkhGIoJ

is what it gave me for Yahoo

I do not see any difference in results presentation or numbers compared to normal link:www.yahoo.com

maybe a little more decoding will help...