Steps to reproduce the issue

When using advanced search and filter, searching something with filter enabled (for example set language to all - see screenshot)

will produce this warning:

Warning: Array to string conversion in modules/mod_finder/src/Helper/FinderHelper.php on line 48

Following foreach gets array instead of string in $v variable.

foreach ($uri->getQuery(true) as $n => $v)
		{
			$fields[] = '<input type="hidden" name="' . $n . '" value="' . $v . '">';
		}

Expected result

• no warning, managing the value in array, not the string

Actual result

• Warning: Array to string conversion in modules/mod_finder/src/Helper/FinderHelper.php on line 48

System information (as much as possible)

Joomla 4.1.5
PHP 8.1.6