A simple example of this bug:

// A simple templated class (we need 2 or more templated types)
template<typename T1, typename T2> class TestTemplate {};

class Object : public QObject
{
Q_OBJECT
public slots:
// The second templated type must be const
void testSlot(TestTemplate<int, const short*>);

signals:
// The second templated type must be const
void testSignal(TestTemplate<int, const short*>);
};

The moc file move "const" keyword at the first templated type as we can see here:

case 0: testSignal((reinterpret_cast< TestTemplate<const int, short>>(_a[1]))); break;
case 1: testSlot((reinterpret_cast< TestTemplate<const int, short>>(_a[1]))); break;

So there are differents types, we can by-pass this bug with a simple "typedef const short* const_short_ptr" and use "const_short_ptr" instead of "const short*".

(Sorry for my bad english)