SQL_ATTR_CONNECTION_TIMEOUT does not seem to be working in QSqlDatabase::setConnectOptions()

When connecting to MS SQL using QSqlDatabase, the SQL_ATTR_CONNECTION_TIMEOUT parameter does not seem to be working, and the timeout duration is not being respected after setting it using the line below:

database.setConnectOptions("SQL_ATTR_CONNECTION_TIMEOUT=5");

To reproduce the issue, run the attached example project.