Young Justice 1x19 Reaction Early Access!

Damn, now I want Orange Juice lol

I don't think the items merged back into each other. I think the spell just gave inanimate objects a second data point in terms of location, so that they existed simultaneously in two realities. When the spell ended, one set of data points just ended. There might have been some grisly recombination when that happened, or it might have been handled by Zatara's spell.