Fixing wacky filters in StockMovementGrid

prs.desktop/Panels/Products/Locations/StockMovementGrid.cs

@@ -183,8 +183,7 @@ public class StockMovementGrid : DynamicDataGrid<StockMovement>, IDataModelSourc
     {
         if (!AllowNullLocation && (Location == null || Location.ID == Guid.Empty))
         {
-            criteria.Add(new Filter<StockMovement>(x => x.ID).IsEqualTo(CoreUtils.FullGuid));
-            criteria.Add(new Filter<StockMovement>(x => x.ID).IsEqualTo(Guid.Empty));
+            criteria.Add(new Filter<StockMovement>().None());
         }
         else
         {
@@ -194,8 +193,7 @@ public class StockMovementGrid : DynamicDataGrid<StockMovement>, IDataModelSourc
 
         if (!AllowNullBatch && (Batch == null || Batch.ID == Guid.Empty))
         {
-            criteria.Add(new Filter<StockMovement>(x => x.ID).IsEqualTo(CoreUtils.FullGuid));
-            criteria.Add(new Filter<StockMovement>(x => x.ID).IsEqualTo(Guid.Empty));
+            criteria.Add(new Filter<StockMovement>().None());
         }
         else
         {