Added missing tuple

models/project.py

@@ -177,7 +177,7 @@ class FilamentProjetCashFlow(models.Model):
                 FROM account_analytic_line
                 WHERE account_id=%s
                 group by date;
-                """, (tuple(prospection_tasks), account_id, ) )
+                """, (tuple(prospection_tasks), tuple(prospection_tasks), account_id, ) )
         cash_flow = self._cr.dictfetchall()
 
         ## Time to first invoice