PVS-Studio warning V595 for OpenMW

void World::clear()
{
  mLocalScripts.clear();
  mPlayer->clear();
  ....
  if (mPlayer)
  ....
}

This suspicious code was found in OpenMW project by PVS-Studio static code analyzer.
Warning message is:
V595 The 'mPlayer' pointer was utilized before it was verified against nullptr. Check lines: 234, 245. openmw worldimp.cpp 234

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/