Make sure the column_name is different from 'all'.
968c581e have fixed the EagerLoadTest, but not in the correct way. The problem was when `empty?` or `size` was called on relation. It was triggering `count(:all)`, which was passing `:all` as the column name to `count` on Calculations. On the other hand, the method `calculate` on Calculations was calling `construct_relation_for_association_calculations` instead of `perform_calculation`, because `has_include?` was returning `true` since `column_name` was present. To prevent calling the wrong method to perform the calculation, we have to check if the `column_name` is present and if it is different from `:all` (which is now used to correctly do `count` with `select`). More information here: https://github.com/rails/rails/commit/968c581ea34b5236af14805e6a77913b1cb36238#commitcomment-6006135
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