ESSImport: fix loading item stacks in containers

apps/essimporter/importinventory.cpp

@@ -18,7 +18,12 @@ namespace ESSImport
             item.mId = contItem.mItem.toString();
             item.mCount = contItem.mCount;
 
-            if (esm.isNextSub("XIDX"))
+            // seems that a stack of items can have a set of subrecords for each item? rings0000.ess
+            // doesn't make any sense to me, if the values were different then the items shouldn't stack in the first place?
+            // I guess we should double check the stacking logic in OpenMW
+            for (int i=0;i<std::abs(item.mCount);++i)
+            {
+                if (esm.isNextSub("XIDX")) // index in the stack?
                     esm.skipHSub();
 
                 std::string script = esm.getHNOString("SCRI");
@@ -40,6 +45,8 @@ namespace ESSImport
                 item.mCondition = -1;
                 // FIXME: for Lights, this is actually a float
                 esm.getHNOT(item.mCondition, "XHLT");
+            }
+
             mItems.push_back(item);
         }