Always reproduced:

```
milovidov-desktop :) create table table_map (a Map(String, String), b String) engine = MergeTree() order by a;

CREATE TABLE table_map
(
    `a` Map(String, String),
    `b` String
)
ENGINE = MergeTree
ORDER BY a

Query id: 8f8120c1-c165-452a-815f-2bcae3957e2a

Ok.

0 rows in set. Elapsed: 0.002 sec. 

milovidov-desktop :) SELECT b FROM table_map WHERE a = map('name', NULL, '', NULL)

SELECT b
FROM table_map
WHERE a = {'name', NULL, '', NULL}
```
{
        auto function_adaptor = FunctionOverloadResolverAdaptor(std::make_unique<DefaultOverloadResolver>(function))
                                    .build({ColumnWithTypeAndName{nullptr, from_type, ""}});
        return [function_adaptor]
            (ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, const ColumnNullable *, size_t input_rows_count)
        {
            return function_adaptor->execute(arguments, result_type, input_rows_count);
        };
    }
    static WrapperType createToNullableColumnWrapper()
    {
        return [] (ColumnsWithTypeAndName &, const DataTypePtr & result_type, const ColumnNullable *, size_t input_rows_count)
        {
            ColumnPtr res = result_type->createColumn();
            ColumnUInt8::Ptr col_null_map_to = ColumnUInt8::create(input_rows_count, true);
            return ColumnNullable::create(res->cloneResized(input_rows_count), std::move(col_null_map_to));
        };
    }
    template <typename ToDataType>
    WrapperType createWrapper(const DataTypePtr & from_type, const ToDataType * const to_type, bool requested_result_is_nullable) const