I did that once. First night camping on a long trip where I discovered I had a 1-person Hubba tent instead of a 2-person Hubba Hubba tent. It all worked out since I was the only one using it, but it was a surprise.
My stuff sack reads "SL 2," and the drawstring looked factory-tied. It was ordered on line and shipped from an REI distribution warehouse, so I doubt it has ever been out of the sack since it was originally put in. But you never know.