PVS-Studio warning V501 for QT

inline bool qCompare(QImage const &t1, QImage const &t2, ....)
{
  ....
  if (t1.width() != t2.width() || t2.height() != t2.height()) {
  ....
}

This suspicious code was found in QT project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions to the left and to the right of the '!=' operator: t2.height() != t2.height() qtest_gui.h 101

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/