[Client] Use correct count for ID_CONTAINER when dropping items

apps/openmw/mwgui/container.cpp

@@ -173,7 +173,10 @@ namespace MWGui
 
         mwmp::ContainerItem containerItem;
         containerItem.refId = itemPtr.getCellRef().getRefId();
-        containerItem.count = itemPtr.getRefData().getCount();
+        
+        // Make sure we get the drag and drop count, not the count of the original item
+        containerItem.count = mDragAndDrop->mDraggedCount;
+        
         containerItem.charge = itemPtr.getCellRef().getCharge();
         containerItem.goldValue = itemPtr.getCellRef().getGoldValue();
         containerItem.owner = itemPtr.getCellRef().getOwner();