issue12567.diff [account_invoice_defer] Defer invoice line only once

#162243

issue12567.diff

@@ -0,0 +1,17 @@
+diff --git a/tryton/modules/account_invoice_defer/account.py b/tryton/modules/account_invoice_defer/account.py
+index 22e28da6c9..be4d4d06f5 100644
+--- a/tryton/modules/account_invoice_defer/account.py
++++ b/tryton/modules/account_invoice_defer/account.py
+@@ -460,9 +460,11 @@ class Invoice(metaclass=PoolMeta):
+     def _post(cls, invoices):
+         pool = Pool()
+         InvoiceDeferred = pool.get('account.invoice.deferred')
++        # defer invoices only the first time post is called
++        invoices_to_defer = [i for i in invoices if not i.move]
+         super()._post(invoices)
+         deferrals = []
+-        for invoice in invoices:
++        for invoice in invoices_to_defer:
+             for line in invoice.lines:
+                 print(invoice, line, line.defer_from)
+                 if line.deferrable and line.defer_from and line.defer_to:

series

@@ -121,3 +121,5 @@ issue12570.diff # [account] Do not compute account party for general ledger line
 issue12590.diff # [account_payment] Do not test active clause of dunning being in a set
 
 issue12618.diff # [sao] Wrap long label to 80 chars
+
+issue12567.diff # [account_invoice_defer] Defer invoice line only once