Yes, they will. The buyers pretty much exist in 2 groups, well 3.
1.) Those who can buy what they can afford, usually the younger fans, 1-2 of each version if they can. These will just buy 1 copy
2.) Those who will only buy one of each copy, whether its 1-4 copies or more, and in this case, they will only buy 1 copy.
3.) Bulk buyers, the number of versions don't matter, they buy the amount of whatever their pot size is, the number of version does not matter, it'll just be pot size divide by cost of album.
Those who dont normally bulk buy wont regardless of album copies and those who bulk buy will bulk buy regardless of album colpies. Very few fans who is not already part of a bulk buy group, will put whatever they can afford into as many copies as they can.