Added null value on line change in report filter

app/Filament/Resources/ProductCharacteristicsMasterResource.php

@@ -465,6 +465,7 @@ class ProductCharacteristicsMasterResource extends Resource
                                 })->pluck('name', 'id');
                             })
                             ->afterStateUpdated(function ($state, callable $set, callable $get) {
+                                $set('work_group_master', null);
                                 $set('Machine', null);
                             }),
                         Select::make('Item')