feat: existingRefund without ticketRefunds

modules/ticket/back/methods/sale/clone.js

@@ -142,12 +142,19 @@ module.exports = Self => {
             ctx.args.addressId = ticket.addressFk;
 
             const newTicket = await models.Ticket.new(ctx, myOptions);
-
-            await models.TicketRefund.create({
-                originalTicketFk: ticketId,
-                refundTicketFk: newTicket.id
-            }, myOptions);
-
+            const existingRefund = await models.TicketRefund.findOne({
+                where: {
+                    originalTicketFk: ticketId,
+                    refundTicketFk: newTicket.id
+                },
+                myOptions
+            });
+            if (!existingRefund) {
+                await models.TicketRefund.create({
+                    originalTicketFk: ticketId,
+                    refundTicketFk: newTicket.id
+                }, myOptions);
+            }
             return newTicket;
         }
     };