MUL-2974 Fix date at category (#298)

Co-authored-by: Robert Pawłowski <r.pawlowski@nowaera.pl>

Author: telemetricsystems

src/Cms/Model/CategoryVersion.php

@@ -69,7 +69,6 @@ public function exchangeOriginal(\Cms\Orm\CmsCategoryRecord $draft)
         $this->_category->parentId = $this->_category->getInitialStateValue('parentId');
         $this->_category->path = $this->_category->getInitialStateValue('path');
         $this->_category->order = $this->_category->getInitialStateValue('order');
-        $this->_category->dateAdd = $this->_category->getInitialStateValue('dateAdd');
         //status active
         $this->_category->status = \Cms\Orm\CmsCategoryRecord::STATUS_ACTIVE;
         //czyszczenie id oryginału