SQLColAttribute and SQL_DESC_FIXED_PREC_SCALE returns wrong value for BigInt

I have a simple test database, two columns, one is a varchar, the other one is a BigInt with Numeric_precision = 19 and Numeric_scale = 0.

When I in my application use the command SQLColAttribute with the field descriptor SQL_DESC_FIXED_PREC_SCALE, it returns SQL_TRUE. But according to documentation, I think it should return SQL_FALSE.

Link to documentation: https://docs.microsoft.com/en-us/sql/odbc/reference/syntax/sqlcolattribute-function?view=sql-server-2017

I have tried MariaDB driver 3.0.7 and 3.1.0 Release Candiate with the same result.

The same database setup on SQL Server and MySQL, and the same application gives the result SQL_FALSE.