class Orange
include Mongoid::Document

field :a
end

class Apple
include Mongoid::Document

field :a
end

Orange.create!

query = Apple.with(collection: "oranges")

Apple.count

query.count ## should == 1 but actually is 0

I'm running into concurrency issues with multiple processes in which I do

Apple.with(collection: "oranges").count should return 1 but instead returns 0 because in between when the query happens something else (different process/thread) accesses Apple and resets the overridden collection name.