With regard to part 1 and the grocery rebate amendments, it's correct that the same amendments in this bill as are in Bill C-46. If both bills were to pass, it wouldn't double the amount of the credit. The amendments do the same thing. They would be effectively redundant.
I can't speak to part 4, but typically there are coordinating amendments in legislation that address a scenario where you have legislation in two different bills that would impact the provisions in the other bill. You have coordinating amendments that address that scenario where one passes or they both subsequently...or they both end up passing. There may be coordinating amendments that address part 4, but that would be a question to put to someone next week.