Demo link shows Live site Contents. Why?

Hi Team,

Demo Link ==>  https://furniture-theme-demo.nopcommerce.com/boards/

And Live Link ===>https://www.nopcommerce.com/boards/

Above two links show the same content. Is it Bug or Am I wrong? It looks Demoe site used live site's DB. I think it should different. Demo site should contain only sample data and also layout and style of pages should same.

Thanks in Advance.