Merge branch 'oldsavessuck' into 'master'

Account for pre-0.46 saves storing a gold value of 0 for everything

See merge request OpenMW/openmw!3902

components/esm3/formatversion.hpp

@@ -9,6 +9,7 @@ namespace ESM
 
     inline constexpr FormatVersion DefaultFormatVersion = 0;
     inline constexpr FormatVersion CurrentContentFormatVersion = 1;
+    inline constexpr FormatVersion MaxOldGoldValueFormatVersion = 5;
     inline constexpr FormatVersion MaxOldFogOfWarFormatVersion = 6;
     inline constexpr FormatVersion MaxUnoptimizedCharacterDataFormatVersion = 7;
     inline constexpr FormatVersion MaxOldTimeLeftFormatVersion = 8;

components/esm3/objectstate.cpp

@@ -30,7 +30,11 @@ namespace ESM
         esm.getHNOT(mEnabled, "ENAB");
 
         if (mVersion <= MaxOldCountFormatVersion)
-            esm.getHNOT(mRef.mCount, "COUN");
+        {
+            if (mVersion <= MaxOldGoldValueFormatVersion)
+                mRef.mCount = std::max(1, mRef.mCount);
+            esm.getHNOT("COUN", mRef.mCount);
+        }
 
         mPosition = mRef.mPos;
         esm.getHNOT("POS_", mPosition.pos, mPosition.rot);