Fix to substitution grid making blank stock movements.

prs.desktop/Panels/Reservation Management/Substitution/ReservationManagementSubstitutionGrid.cs

@@ -84,6 +84,10 @@ public class ReservationManagementSubstitutionGrid : DynamicDataGrid<StockHoldin
         HiddenColumns.Add(x => x.Dimensions.Unit.Code);
         HiddenColumns.Add(x => x.Dimensions.Unit.Description);
         HiddenColumns.Add(x => x.Available);
+        foreach(var column in StockHolding.Columns)
+        {
+            HiddenColumns.Add(column);
+        }
     }
 
     protected override void Reload(Filters<StockHolding> criteria, Columns<StockHolding> columns, ref SortOrder<StockHolding>? sort, CancellationToken token, Action<CoreTable?, Exception?> action)