Symbol toolbar is populated with wrong items when using symbols across namespaces

#include <QCoreApplication>

typedef int ERRCODE;
#define MYRC_OK 0

namespace Other
{

class MyClass
{

};

}

namespace Main
{

template <class X, class Y, class Z>
class TemplateA
{
  public:
  explicit TemplateA();
};

template< class X, class Y, class Z >
TemplateA< X, Y, Z >::TemplateA()
{

}

template< class X, class Y >
class TemplateB : public TemplateA< X, Y, TemplateB< X, Y > >
{
public:
  explicit TemplateB();

  ERRCODE method(Other::MyClass& );
};

template< class X, class Y >
TemplateB< X, Y >::TemplateB()
{

}

template < class X, class Y >
ERRCODE TemplateB< X, Y >::method(Other::MyClass& )
{
  ERRCODE ret = MYRC_OK;
  return ret;
}

#define DEFINE_SPECIALIZED_METHOD(ValueType) \
  template <> \
  ERRCODE TemplateB< X, ValueType >::method(MyClass &) \
  { \
    ERRCODE rc = MYRC_OK \
    if (rc != MYRC_OK) \
      return rc; \
    return MYRC_OK; \
  }

template < class X, class Y >
struct TemplateC;

#define DEFINE_OTHER_METHODS(ValueType) \
  template <> \
  void TemplateB< X, ValueType >::init(bool) \
  { \
  }


#ifdef MY_DEF
DEFINE_SPECIALIZED_METHOD(Other::MyClass)
DEFINE_OTHER_METHODS(Other::MyClass)
#endif
#undef DEFINE_SPECIALIZED_METHOD

#ifdef MY_OTHER_DEF
template <>
ERRCODE TemplateB< int, float >::method(MyClass &)
{
  return MYRC_OK;
}
#endif
}

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

  return a.exec();
}