Fix Invoice class to not call validateData

This avoids calling the BaseIPN validateData class from Invoice.php and calls the narrower
loadRelatedObjects to avoid having to change the code around it

CRM/Contribute/Form/Task/Invoice.php

@@ -210,7 +210,7 @@ public static function printPDF($contribIDs, &$params, $contactIds) {
     $pendingStatusId = CRM_Utils_Array::key('Pending', $contributionStatusID);
 
     foreach ($invoiceElements['details'] as $contribID => $detail) {
-      $input = $ids = $objects = [];
+      $input = $ids = [];
       if (in_array($detail['contact'], $invoiceElements['excludeContactIds'])) {
         continue;
       }
@@ -225,20 +225,17 @@ public static function printPDF($contribIDs, &$params, $contactIds) {
       $ids['participant'] = $detail['participant'] ?? NULL;
       $ids['event'] = $detail['event'] ?? NULL;
 
-      if (!$invoiceElements['baseIPN']->validateData($input, $ids, $objects, FALSE)) {
-        CRM_Core_Error::statusBounce('Supplied data was not able to be validated');
-      }
-
-      $contribution = &$objects['contribution'];
+      $contribution = new CRM_Contribute_BAO_Contribution();
+      $contribution->id = $contribID;
+      $contribution->fetch();
+      $contribution->loadRelatedObjects($input, $ids);
 
       $input['amount'] = $contribution->total_amount;
       $input['invoice_id'] = $contribution->invoice_id;
       $input['receive_date'] = $contribution->receive_date;
       $input['contribution_status_id'] = $contribution->contribution_status_id;
       $input['organization_name'] = $contribution->_relatedObjects['contact']->organization_name;
 
-      $objects['contribution']->receive_date = CRM_Utils_Date::isoToMysql($objects['contribution']->receive_date);
-
       // Fetch the billing address. getValues should prioritize the billing
       // address, otherwise will return the primary address.
       $billingAddress = [];