I bet they did not, it is just a listing text.

http://realtytimes.com/agentnews/agentadvice1/item/27620-20140218-agents-balk-at-requirement-that-short-sales-be-offered-at-auction

"We will approve the deal, but only if we first put the property up for auction and find that we cannot get a better price. If we can get a better price, then the auction buyer gets the property. The listing agent still gets his/her commission, but the original buyer's agent is left out - unless the original buyer joins the auction and winds up being the highest bidder."