Valve broke MvM again because they don’t do any regression testing

Previously, CTFPlayer::IsAllowedToPickUpFlag only checked attribute “cannot_pick_up_intelligence“ (used by items, e.g. sticky jumper). Now, it also requires that the player not be in TF_COND_GHOST_MODE (77), as well as not in TF_COND_STUNNED (15). Notable sources of stun (i.e., ways in which players may end up in TF_COND_STUNNED): - MvM: robo sapper (even at 0 upgrade ticks) - MvM: rocket specialist upgrade (even on rocket jumper) - MvM: jarate/milk slowdown upgrade - MvM: explosive headshot upgrade - MvM