beast races cannot equip anything they oughtn't to be able to equip

apps/openmw/mwworld/actionequip.cpp

@@ -43,6 +43,29 @@ namespace MWWorld
             // Beast races cannot equip shoes / boots
             if(npcRace == "argonian" || npcRace == "khajiit")
             {
+                if(*slot == MWWorld::InventoryStore::Slot_Helmet){ 
+                    std::vector<ESM::PartReference> parts;
+
+                    if(it.getType() == MWWorld::ContainerStore::Type_Clothing)
+                        parts = it->get<ESM::Clothing>()->mBase->mParts.mParts;
+                    else
+                        parts = it->get<ESM::Armor>()->mBase->mParts.mParts;
+
+                    bool allow = true;
+                    for(std::vector<ESM::PartReference>::iterator itr = parts.begin(); itr != parts.end(); ++itr)
+                    {
+                        if((*itr).mPart == ESM::PartReferenceType::PRT_Head)
+                        {
+                            MWBase::Environment::get().getWindowManager()->messageBox ("#{sNotifyMessage13}", std::vector<std::string>());
+                            allow = false;
+                            break;
+                        }
+                    }
+                    
+                    if(!allow)
+                        break;
+                }
+
                 if (*slot == MWWorld::InventoryStore::Slot_Boots)
                 {  
                     // Only notify the player, not npcs
@@ -57,9 +80,9 @@ namespace MWWorld
                             MWBase::Environment::get().getWindowManager()->messageBox ("#{sNotifyMessage14}", std::vector<std::string>());
                         }
                     }
+                    break;
                 }
 
-                break;
             }
 
             // if all slots are occupied, replace the last slot