bugfix max value in range slider

app/UI/Disk/Forms/UpdateForm.php

@@ -35,6 +35,7 @@ use ModulesGarden\Servers\ProxmoxCloudVps\Core\UI\Widget\Forms\Fields\Range;
 class UpdateForm extends BaseForm implements ClientArea
 {
     use ProductService;
+    protected $diskSize;
 
     public function initContent()
     {
@@ -44,7 +45,7 @@ class UpdateForm extends BaseForm implements ClientArea
         $this->setProvider(new DiskProvider());
         $this->initFields();
         $this->loadDataToForm();
-        $this->diskSize = parent::getFormData()['size'];
+        $diskSize = parent::getFormData()['size'];
         $rangeField = $this->getField('additionalDiskSize');
         $rangeField->setMinValue($diskSize);
         $rangeField->setDefaultValue($diskSize);
@@ -76,7 +77,7 @@ class UpdateForm extends BaseForm implements ClientArea
         logModuleCall(
             'proxmoxCloud',
             __FUNCTION__,
-            $this->diskSize,
+            $diskSize,
             'Debug',
             $this->configuration()
         );