Wrong result from select when aliasing to same name as used in group by

Wrong result from select when aliasing to same name as used in group by. Example:

If we have the following table:

ij> select * from tt;
I |J
-----------------------
1 |2
2 |3
1 |2
2 |3
2 |3

5 rows selected

The following select is ok:

ij> select i, count as cnt from tt group by i;
I |CNT
-----------------------
1 |2
2 |3

2 rows selected

But this one returns wrong result in the aliased column:

ij> select i, count as i from tt group by i;
I |I
-----------------------
1 |1
2 |2

2 rows selected