Fix date of contract not used

htdocs/contrat/class/contrat.class.php

@@ -2127,6 +2127,7 @@ class Contrat extends CommonObject
 		$this->ref_supplier = 'SPECIMENSUPP';
 		$this->socid = 1;
 		$this->statut= 0;
+		$this->date_creation = (dol_now() - 3600 * 24 * 7);
 		$this->date_contrat = dol_now();
 		$this->commercial_signature_id = 1;
 		$this->commercial_suivi_id = 1;

htdocs/core/modules/contract/doc/pdf_strato.modules.php

@@ -554,7 +554,7 @@ class pdf_strato extends ModelePDFContract
 		$posy+=4;
 		$pdf->SetXY($posx,$posy);
 		$pdf->SetTextColor(0,0,60);
-		$pdf->MultiCell(100, 3, $outputlangs->transnoentities("Date")." : " . dol_print_date($object->date_creation,"day",false,$outputlangs,true), '', 'R');
+		$pdf->MultiCell(100, 3, $outputlangs->transnoentities("Date")." : " . dol_print_date($object->date_contrat,"day",false,$outputlangs,true), '', 'R');
 
 		if ($object->thirdparty->code_client)
 		{