Wrong value of TOTALS in function maxMap

[CurtizJ]

SELECT maxMap([number % 3, (number % 4) - 1], [number, NULL])
FROM numbers(3)
GROUP BY number
    WITH TOTALS
ORDER BY number ASC;

┌─maxMap(array(modulo(number, 3), minus(modulo(number, 4), 1)), array(number, NULL))─┐
│ ([-1,0],[0,0])                                                                     │
│ ([0,1],[0,1])                                                                      │
│ ([1,2],[0,2])                                                                      │
└────────────────────────────────────────────────────────────────────────────────────┘

Totals:
┌─maxMap(array(modulo(number, 3), minus(modulo(number, 4), 1)), array(number, NULL))─┐
│ ([-1,0,1,2],[0,0,0,2])                                                             │
└────────────────────────────────────────────────────────────────────────────────────┘

We should have totals: [-1,0,1,2],[0,0,1,2] because we have value 1 for key 1 in the second row. This behaviour is reflected in test 02480_max_map_null_totals, but it's wrong.

However it works correctly with settings group_by_two_level_threshold = 1, max_bytes_before_external_group_by = 1:

SELECT maxMap([number % 3, (number % 4) - 1], [number, NULL])
FROM numbers(3)
GROUP BY number
    WITH TOTALS
ORDER BY number ASC
SETTINGS group_by_two_level_threshold = 1, max_bytes_before_external_group_by = 1;

┌─maxMap(array(modulo(number, 3), minus(modulo(number, 4), 1)), array(number, NULL))─┐
│ ([-1,0],[0,0])                                                                     │
│ ([0,1],[0,1])                                                                      │
│ ([1,2],[0,2])                                                                      │
└────────────────────────────────────────────────────────────────────────────────────┘

Totals:
┌─maxMap(array(modulo(number, 3), minus(modulo(number, 4), 1)), array(number, NULL))─┐
│ ([-1,0,1,2],[0,0,1,2])                                                             │
└────────────────────────────────────────────────────────────────────────────────────┘