Base: Weapons_SetModel; make sure the viewmodel's bbox gets set to point

size every time the model changes, in case the sv_gameplayfix for setmodel
sizes hack is enabled.

base/src/shared/weapon_common.qc

@@ -121,6 +121,7 @@ Weapons_SetModel(string mdl)
 {
 #ifdef CLIENT
 	setmodel(pSeat->m_eViewModel, mdl);
+	setsize(pSeat->m_eViewModel, [0,0,0], [0,0,0]);
 #endif
 }