From the Margiotta Food and Wine Facebook page dated 01 Oct:-

“Hello Everyone!
We’ve had quite a few messages from people enquiring about a new Margiotta’s opening up just down from our Comiston Road store. Although it is named “Margiotta’s” it is not our store and not affiliated with us. The owners are another branch of the Margiotta family, but the store is not connected to us in any way
Hope that clears up any confusion :)“