PVS-Studio warning V564 for Doom3

#define BIT( num ) ( 1 << ( num ) )
const int BUTTON_ATTACK = BIT(0);

void idTarget_WaitForButton::Think( void ) {
  ...
  if ( player &&
      ( !player->oldButtons & BUTTON_ATTACK ) &&
      ( player->usercmd.buttons & BUTTON_ATTACK ) ) {
  ...
}

A trouble with parentheses: ( !(player->oldButtons & BUTTON_ATTACK) ) &&

This suspicious code was found in Doom3 project by PVS-Studio static code analyzer.
Warning message is:
V564 The '&' operator is applied to bool type value. You've probably forgotten to include parentheses or intended to use the '&&' operator. Game target.cpp 257

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