AR Calculations group by multiple fields

[acatighera]

The :group option is broken for multiple fields when performing an AR calculation. See the example below:

Account.count(:all, :group => 'firm_id, credit_limit')
# returns <OrderedHash {60=>1, 55=>1, 50=>1, 53=>1}>
# should return <OrderedHash {[2, 60]=>1, [nil, 50]=>1, [9, 53]=>1, [6, 55]=>1, [1, 50]=>1, [6, 50]=>1}>

The behavior for grouping by a single field or an association is unchanged. Also, the :group option still takes in a string as always.

[acatighera]

any updates on for this?