PVS-Studio warning V543 for VirtualBox

class ATL_NO_VTABLE SessionMachine : public Machine
{
  ....
  HRESULT mRemoveSavedState;
  ....
}

HRESULT SessionMachine::init(Machine *aMachine)
{
  ....
  /* default is to delete saved state on
   * Saved -> PoweredOff transition */
  mRemoveSavedState = true;
  ....
}

This suspicious code was found in VirtualBox project by PVS-Studio static code analyzer.
Warning message is:
V543 It is odd that value 'true' is assigned to the variable 'mRemoveSavedState' of HRESULT type. machineimpl.cpp 12247

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/