Incorrect type of UDF-argument with array

FB4

**UDF declaration**
```sql
DECLARE EXTERNAL FUNCTION MY_UDF__GET_DIM
INTEGER BY SCALAR_ARRAY
RETURNS INTEGER BY VALUE
ENTRY_POINT 'fn_get_dim__i4__sa'
MODULE_NAME 'lcpi.test.udf.01.dll'
```

**DSQL**
```sql
select MY_UDF__GET_DIM(?) from rdb$database
```

Server says that parameter has type INTEGER but it is expected ARRAY (with integers).