Revert "Transfer item ownership to the buyer if item wasn't stolen"

Fixes #1953.

This reverts commit 5d77c5e8ca.

apps/openmw/mwgui/containeritemmodel.cpp

@@ -76,7 +76,7 @@ MWWorld::Ptr ContainerItemModel::copyItem (const ItemStack& item, size_t count,
     const MWWorld::Ptr& source = mItemSources[mItemSources.size()-1];
     if (item.mBase.getContainerStore() == &source.getClass().getContainerStore(source))
         throw std::runtime_error("Item to copy needs to be from a different container!");
-    return *source.getClass().getContainerStore(source).add(item.mBase, count, source, setNewOwner);
+    return *source.getClass().getContainerStore(source).add(item.mBase, count, source);
 }
 
 void ContainerItemModel::removeItem (const ItemStack& item, size_t count)

apps/openmw/mwgui/tradeitemmodel.cpp

@@ -119,7 +119,7 @@ namespace MWGui
         return mBorrowedToUs;
     }
 
-    void TradeItemModel::transferItems(const MWWorld::Ptr& transferFrom)
+    void TradeItemModel::transferItems()
     {
         std::vector<ItemStack>::iterator it = mBorrowedToUs.begin();
         for (; it != mBorrowedToUs.end(); ++it)
@@ -135,11 +135,9 @@ namespace MWGui
             if (i == sourceModel->getItemCount())
                 throw std::runtime_error("The borrowed item disappeared");
 
+            // reset owner while copying, but only for items bought by the player
+            bool setNewOwner = (mMerchant.isEmpty());
             const ItemStack& item = sourceModel->getItem(i);
-
-            bool setNewOwner = Misc::StringUtils::ciEqual(item.mBase.getCellRef().getOwner(), transferFrom.getCellRef().getRefId())
-                    || item.mBase.getCellRef().getOwner().empty();
-
             // copy the borrowed items to our model
             copyItem(item, it->mCount, setNewOwner);
             // then remove them from the source model

apps/openmw/mwgui/tradeitemmodel.hpp

@@ -30,8 +30,7 @@ namespace MWGui
         void returnItemBorrowedFromUs (ModelIndex itemIndex, ItemModel* source, size_t count);
 
         /// Permanently transfers items that were borrowed to us from another model to this model
-        /// @param transferFrom the actor that lent us the items
-        void transferItems (const MWWorld::Ptr& transferFrom);
+        void transferItems ();
         /// Aborts trade
         void abort();
 

apps/openmw/mwgui/tradewindow.cpp

@@ -370,8 +370,8 @@ namespace MWGui
             MWBase::Environment::get().getDialogueManager()->applyDispositionChange(iBarterSuccessDisposition);
 
         // make the item transfer
-        mTradeModel->transferItems(player);
-        playerItemModel->transferItems(mPtr);
+        mTradeModel->transferItems();
+        playerItemModel->transferItems();
 
         // transfer the gold
         if (mCurrentBalance != 0)