When saving a document that has has an embeds_one document nested inside of another embeds_one document I am getting the following error: NoMethodError: undefined method `push' for #<BSON::OrderedHash:0x007ff3be6ed1d8>.

Line Fault is /lib/mongoid/atomic/modifiers.rb:122

For now my workaround to the issue is to extend Hash with the following method:

def push(arr)
raise "Invalid argument size - size should equal 2" if arr.size != 2
self[arr[0]] = arr[1]
end