QMetaType API inconsistency

QMetaType::type returns 0 for unregistered types, whereas 0 is considered a default-type by QMetaType::isRegistered. A -1 return value from QMetaType::type would be more in line with the rest of Qt.

#include <QtGui>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);

if (!QMetaType::isRegistered(QMetaType::type("QList<double>")))

Q_ASSERT("queued connection with QList<double> parameter");
}

Update:
Such a change cannot be done until Qt 5 due to compabitility reasons.