Transactions in sql Oracle driver are not working

The Oracle SQL driver is not working correctly, executing the attached test, all tuples after the rollback remain on the table, the patch is the following for qsql_oci.cpp :

< const bool *transaction;
—
> bool transaction;
1534c1534
< *d->transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS);
—
> d->transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS);
1770c1770
< sql(0), transaction(&driver->transaction), serverVersion(driver->serverVersion),
—
> sql(0), transaction(driver->transaction), serverVersion(driver->serverVersion),
1970c1970
< mode = *d->transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
—
> mode = d->transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;