#include <QObject>
int main(int argc, char** argv)
{
  QObject object;
  int emitted = 0;
  QMetaObject::Connection qConnection = QObject::connect(&object, &QObject::objectNameChanged, [&emitted]
  {
    ++emitted;
  });
  QMetaObject::Connection qConnectionCopy = qConnection;
  QObject::disconnect(qConnection);
  Q_ASSERT(!qConnection);
  Q_ASSERT(!qConnectionCopy);
}