Domestic First Drink Selection

Is the Domestic First Drink selection just the same as what is in the back plus whatever they have leftover from their last international flight? Or is there some difference in catering the front cabin with drinks than the main cabin?

I know widebody international J/F usually have a drink list and from my limited experience on narrowbody international, they seem to have the same selection as the widebody international (some better wines, Glenlivet, not sure of the other liquors since when I do want liquor, I only get scotch or bourbon.) just not on a published list.

After a long day in the air and a tight I-->D connection, I forgot I was heading home to my sleepy Midwestern outstation on a domestic flight and asked for a Glenlivet and the FA said he'd have to check to see if he had any. To my surprise he did! Came back and asked me if I wanted the last 2, "No one ever gets them so if you want them they are yours."