Merge pull request #7134 from defrance/patch-22

if no suppliers selected, no subprice yet

htdocs/supplier_proposal/class/supplier_proposal.class.php

@@ -2841,7 +2841,7 @@ class SupplierProposalLine  extends CommonObjectLine
         $sql.= " ".price2num($this->localtax2_tx).",";
 		$sql.= " '".$this->localtax1_type."',";
 		$sql.= " '".$this->localtax2_type."',";
-        $sql.= " ".price2num($this->subprice).",";
+        $sql.= " ".(!empty($this->subprice)?price2num($this->subprice):"null").",";
         $sql.= " ".price2num($this->remise_percent).",";
         $sql.= " ".(isset($this->info_bits)?"'".$this->info_bits."'":"null").",";
         $sql.= " ".price2num($this->total_ht).",";