I have no idea why mongoid started to acting strange. This is one of the two issues I will file.

I have a model:

class LineItem
 field 'type', :type => Integer
 // more fields
end

For most part it works correctly, but for specific items - doing @line_item.type returns 1.0
In the database the value is 1... not sure where mongoid decides to store the number as a float. Note that the value is 1.0 right after the query.

I am using 2.1.9