RelToSqlConverter should retain the aggregation logic when Project without RexInputRef on the Aggregate

select  l.v as l_cost
from    (
            select  0 as v,
                    1 as k
        ) l
join    (
    select  sum("cost") as v,
                    1 as k
    from    (
        select 1 as "cost"
        union
        select 2 as "cost"
        )
) r
on l.k = r.k 

LogicalProject(L_COST=[$0])
  LogicalJoin(condition=[=($1, $3)], joinType=[inner])
    LogicalValues(tuples=[[{ 0, 1 }]])
    LogicalProject(V=[$0], K=[1])
      LogicalAggregate(group=[{}], V=[SUM($0)]) <!-- Here is SUM() -->
         LogicalUnion(all=[false])
          LogicalValues(tuples=[[{ 1 }]])
          LogicalValues(tuples=[[{ 2 }]]) 

LogicalProject(L_COST=[$0])
  LogicalJoin(condition=[=($1, $2)], joinType=[inner])
    LogicalValues(tuples=[[{ 0, 1 }]])
    LogicalProject(K=[1]) 
      LogicalAggregate(group=[{}], DUMMY=[COUNT()]) <!-- Missing SUM() -->
        LogicalUnion(all=[false])
          LogicalValues(tuples=[[{ 1 }]])
          LogicalValues(tuples=[[{ 2 }]])

SELECT *
FROM 
  (VALUES (0, 1)) AS "t" ("V", "K")
INNER JOIN 
  (SELECT 1 AS "K" -- Missing SUM()
   FROM (SELECT *
         FROM (VALUES (1)) AS "t" ("cost")
         UNION
         SELECT *
         FROM (VALUES (2)) AS "t" ("cost")) AS "t2"
  ) AS "t4" 
ON "t"."K" = "t4"."K"