fix: php warnings

Author: btry

inc/formanswer.class.php

@@ -1379,6 +1379,7 @@ private function createIssue() {
          1
       );
       $ticketUserRow = array_pop($ticketUserRow);
+      $requester = $ticketUserRow !== null ? $ticketUserRow['users_id'] : 0;
       $issueName = $ticket->fields['name'] != '' ? addslashes($ticket->fields['name']) : '(' . $ticket->getID() . ')';
       $issue->add([
          'items_id'           => $ticketId,
@@ -1389,7 +1390,7 @@ private function createIssue() {
          'date_mod'           => $ticket->fields['date_mod'],
          'entities_id'        => $ticket->fields['entities_id'],
          'is_recursive'       => '0',
-         'requester_id'       => $ticketUserRow['users_id'],
+         'requester_id'       => $requester,
          'comment'            => addslashes($ticket->fields['content']),
       ]);
    }

inc/targetticket.class.php

@@ -848,7 +848,8 @@ public function save(PluginFormcreatorFormAnswer $formanswer) {
       }
 
       $data['users_id_recipient'] = $formanswer->fields['requester_id'];
-      $data['users_id_lastupdater'] = Session::getLoginUserID();
+      $lastUpdater = Session::getLoginUserID();
+      $data['users_id_lastupdater'] = $lastUpdater != '' ? $lastUpdater : 0;
 
       $data = $this->setTargetType($data, $formanswer);
       $data = $this->setTargetEntity($data, $formanswer, $requesters_id);