GL bug

modules/account/account.py

@@ -3080,8 +3080,26 @@ class GeneralLedgerDetail(DescriptionOriginMixin, ModelSQL, ModelView):
         payments = Payment.search([('line', '=', self.move_line.id)], limit=1)
         return payments[0] if payments else None
 
+    @staticmethod
+    def _resolve_reference(value):
+        if not value or hasattr(value, '__name__'):
+            return value
+        if not isinstance(value, str):
+            return None
+        try:
+            model_name, record_id = value.split(',', 1)
+            record_id = int(record_id)
+        except ValueError:
+            return None
+        try:
+            Model = Pool().get(model_name)
+        except KeyError:
+            return None
+        return Model(record_id)
+
     def get_document_field(self, name):
-        origin = self.move.origin if self.move else None
+        origin = self._resolve_reference(
+            self.origin or (self.move.origin if self.move else None))
         if origin:
             model_name = origin.__name__
             if model_name == 'account.invoice':

modules/account/tests/test_module.py

@@ -2196,5 +2196,22 @@ class AccountTestCase(
                 'to_date': datetime.date(2026, 1, 31),
                 })
 
+    @with_transaction()
+    def test_general_ledger_detail_document_field_reference_string(self):
+        "Test General Ledger Detail document fields resolve reference strings"
+        pool = Pool()
+        Detail = pool.get('account.general_ledger.detail')
+        Party = pool.get('party.party')
+
+        party = Party(name='Customer')
+        party.save()
+
+        detail = Detail()
+        detail.origin = '%s,%s' % (Party.__name__, party.id)
+
+        self.assertIsNone(detail.get_document_field('document_number'))
+        self.assertEqual(detail.get_document_field('document_type'),
+            party.rec_name)
+
 
 del ModuleTestCase