FIX: modification of complementary attributes in invoices

[am97]

FIX: modification of complementary attributes in invoices

Similar to #26115 , this PR fixes the modification of complementary attributes in invoices, which was leading to a blank page with the following error:

PHP Fatal error:  Uncaught Exception: Serialization of PgSql\Connection is not allowed in /var/www/html/core/lib/functions.lib.php:1168
Stack trace:
#0 /var/www/html/core/lib/functions.lib.php(1168): serialize()
#1 /var/www/html/compta/facture/card.php(2798): dol_clone()
#2 {main}

[eldy]

This looks strange because into the dol_clone method when using parameter zero, we have
if (isset($object->db) && isset($object->db->db) && is_object($object->db->db) && get_class($object->db->db) == 'PgSql\Connection') { $tmpsavdb = $object->db; unset($object->db); // Such property can not be serialized with pgsl (when object->db->db = 'PgSql\Connection')
So we should not experience this trouble. Can you check why we don't enter into this test ?

[hregis]

@am97 what is the version of your php ?

[am97]

Can you check why we don't enter into this test ?

I made a dump of the object passed to dol_clone, there is another PgSql\Connection object (lines[0]->db->db). Here is the dump (I replaced some data with **redacted**):

php_object_dump.txt

@am97 what is the version of your php ?

PHP 8.1.20 (we are using a Docker image based on tuxgasy/dolibarr:16.0.5)