Corrected Issue with Lookup Fields on Dynamic Forms

inabox.wpf/DigitalForms/DynamicVariableGrid.cs

@@ -192,7 +192,7 @@ namespace InABox.DynamicGrid
                     var result = DynamicGridUtils.UpdateEditorValue(new[] { item }, name, value);
                     if (name == "LookupType")
                     {
-                        var grid = (sender as DynamicEditorGrid)!;
+                        var grid = (sender as EmbeddedDynamicEditorForm)?.Editor!;
                         var edit = grid.FindEditor("Filter");
                         if (edit is FilterEditorControl filter)
                         {