Category Sorting disabled (more than 1000 categories) drag&drop error - ZOO 2.х

// disable category sorting if there are more than a thousand categories
if (!$enable_category_sorting = count($this->categories) <= 1000) {
	$this->app->error->raiseNotice(0, 'Category Sorting disabled (more than 1000 categories)');
}

// disable category sorting if there are more than a thousand categories
if (!$enable_category_sorting = count($this->categories) <= 5000) {
	$this->app->error->raiseNotice(0, 'Category Sorting disabled (more than 5000 categories)');
}