Fix(CS): Initialize landscape when opening an existing cell without VHGT

apps/opencs/view/render/cell.cpp

@@ -137,8 +137,9 @@ void CSVRender::Cell::updateLand()
     {
         const ESM::Land& esmLand = land.getRecord(mId).get();
 
-        if (esmLand.getLandData(ESM::Land::DATA_VHGT))
-        {
+        if (!esmLand.getLandData(ESM::Land::DATA_VHGT))
+            mTerrainStorage->resetHeights();
+
         if (mTerrain)
         {
             mTerrain->unloadCell(mCoordinates.getX(), mCoordinates.getY());
@@ -160,7 +161,6 @@ void CSVRender::Cell::updateLand()
 
         return;
     }
-    }
 
     // No land data
     unloadLand();