Also, in looking at the existing listings for the current Batman: Gotham by Gaslight title in the database, I see that issues #1-2, #1-3, and #1-7 all state that they reprint the original Batman: Gotham by Gaslight and also Batman: Master of the Future, but none of the other issues that are in the so-called deluxe edition. So those items would need to go into their own title as well. I don't own any of them, so I don't know how the indicia reads. But I suspect that when we are all done there will be something along lines of the following in the databse:
• Batman: Gotham by Gaslight [the original 1989 one-shot]
• Batman: Gotham by Gaslight (2nd series) [would cover the editions from 2006 through ???? that reprint B:GbG and B:MotF; currently listed as #1-2, #1-3, and #1-7 in the database]
• Batman: Gotham by Gaslight (3rd series) [would cover the so-called deluxe hardcover and new trade paperback that reprint B:GbG, B:MotF, Countdown Presents: The Search for Ray Palmer: Gotham by Gaslight #1, and Convergence: Shazam! #1 & #2.
Also: it also looks like issue #1-8 in the database is the same thing as the brand new "deluxe" trade paperback. So that the info for that issue can be used to populate the info for Batman: Gotham by Gaslight (3rd series) #Bk 1.