[FIX] contract: Onchange contract template raise error

contract/__manifest__.py

@@ -8,7 +8,7 @@
 
 {
     'name': 'Contracts Management - Recurring',
-    'version': '11.0.1.4.1',
+    'version': '11.0.1.4.2',
     'category': 'Contract Management',
     'license': 'AGPL-3',
     'author': "OpenERP SA, "

contract/models/account_analytic_account.py

@@ -145,6 +145,8 @@ class AccountAnalyticAccount(models.Model):
         new_lines = []
         for contract_line in contract.recurring_invoice_line_ids:
             vals = contract_line._convert_to_write(contract_line.read()[0])
+            # Remove template link field named as analytic account field
+            vals.pop('analytic_account_id', False)
             new_lines.append((0, 0, vals))
         return new_lines