Merge pull request #5496 from olsesacl/3.8_#5450

Fix #5450 Bug: Expenses Form : SQL error on updating line

htdocs/expensereport/class/expensereport.class.php

@@ -1741,6 +1741,7 @@ class ExpenseReportLine
         // Clean parameters
         $this->comments=trim($this->comments);
         $this->vatrate = price2num($this->vatrate);
+        $this->value_unit = price2num($this->value_unit);
 
         $this->db->begin();