[FIX] account: Missing Partner in account move line

When creating account move lines from an account move, the partner
set on the account move lines has to be the same than the one on the
account move.

opw:668322

addons/account/models/account_move.py

@@ -96,7 +96,7 @@ class AccountMove(models.Model):
 
     @api.model
     def create(self, vals):
-        move = super(AccountMove, self.with_context(check_move_validity=False)).create(vals)
+        move = super(AccountMove, self.with_context(check_move_validity=False, partner_id=vals.get('partner_id'))).create(vals)
         move.assert_balanced()
         return move
 
@@ -894,7 +894,8 @@ class AccountMoveLine(models.Model):
         MoveObj = self.env['account.move']
         context = dict(self._context or {})
         amount = vals.get('debit', 0.0) - vals.get('credit', 0.0)
-
+        if not vals.get('partner_id') and context.get('partner_id'):
+            vals['partner_id'] = context.get('partner_id')
         if vals.get('move_id', False):
             move = MoveObj.browse(vals['move_id'])
             if move.date and not vals.get('date'):