Fix: Repeat fields typing in CommonClass children

# Fix: Repeat fields typing in CommonClass children

phpstan needs typing to be 'co-variant' and therefore typing must be repeated as
the method is not to initialise the property in the constructor, but to override
the proparty by a 'local' definition in the child class

htdocs/variants/class/ProductAttributeValue.class.php

@@ -1,6 +1,7 @@
 <?php
 /* Copyright (C) 2016	Marcos García	<marcosgdf@gmail.com>
  * Copyright (C) 2022   Open-Dsi		<support@open-dsi.fr>
+ * Copyright (C) 2024		MDW							<mdeweerd@users.noreply.github.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -75,7 +76,7 @@ class ProductAttributeValue extends CommonObjectLine
 	 *  Note: To have value dynamic, you can set value to 0 in definition and edit the value on the fly into the constructor.
 	 */
 	/**
-	 * @var array  Array with all fields and their property. Do not use it as a static var. It may be modified by constructor.
+	 * @var array<string,array{type:string,label:string,enabled:int<0,2>,position:int,notnull:int,visible:int,noteditable?:int,default?:string,index?:int,foreignkey?:string,searchall?:int,isameasure?:int,css?:string,help?:string,showoncombobox?:int,disabled?:int,arrayofkeyval?:array<int,string>,comment?:string}>  Array with all fields and their property. Do not use it as a static var. It may be modified by constructor.
 	 */
 	public $fields=array(
 		'rowid' => array('type'=>'integer', 'label'=>'TechnicalID', 'enabled'=>'1', 'position'=>1, 'notnull'=>1, 'visible'=>0, 'noteditable'=>'1', 'index'=>1, 'css'=>'left', 'comment'=>"Id"),