Conditional tab visibility triggers weird form glitch

public static function getForm(): array  
{  
    return [  
        Tabs::make('Tabs')  
            ->columnSpanFull()  
            ->tabs([  
                Tabs\Tab::make(label('process.tabs.basic'))  
                    ->schema([  
                        Fieldset::make(label('process.fieldsets.basic'))  
                            ->schema([  
                                Select::make('application_type')  
                                    ->live()  
                                    ->multiple()  
                                    ->required()  
                                    ->options(AufbruchSetting::getOptions("application_type"))  
                                    ->label(label('process.fields.application_type')),  
                                    ]), 
                        ]), 
                Tabs\Tab::make(label('process.tabs.excavation'))  
                    ->visible(function ($record, $get) {  
                        if ($record) {  
                            return $record->excavation !== null;  
                        }  
  
                        $applicationTypes = $get('application_type') ?? [];  
                        return in_array('Aufbruchgenehmigung', $applicationTypes);  
                    })  
                    ->schema([  
                            Fieldset::make(label('process.fieldsets.excavation'))  
                                ->relationship('excavation')  
                                ->schema(Excavation::getForm())  
                    ]),  
                Tabs\Tab::make(label('process.tabs.warranties'))  
                    ->schema([  
                        Repeater::make(label('process.fields.warranties'))  
                    ]),  
            ->contained(false)  
    ];  
}