[IMP] account: improve display name of cancelled journal entries

The display name of cancelled entries is "/"
This provides no information to the user - especially when the duplication message is logged.

This aims to improve the display_name of account.move so draft and cancelled entries display the id as a reference

closes odoo/odoo#70764

Signed-off-by: Quentin De Paoli (qdp) <qdp@openerp.com>

addons/account/models/account_move.py

@@ -2178,9 +2178,9 @@ class AccountMove(models.Model):
         :return:            A string representing the invoice.
         '''
         self.ensure_one()
-        draft_name = ''
+        name = ''
         if self.state == 'draft':
-            draft_name += {
+            name += {
                 'out_invoice': _('Draft Invoice'),
                 'out_refund': _('Draft Credit Note'),
                 'in_invoice': _('Draft Bill'),
@@ -2189,11 +2189,12 @@ class AccountMove(models.Model):
                 'in_receipt': _('Draft Purchase Receipt'),
                 'entry': _('Draft Entry'),
             }[self.move_type]
-            if not self.name or self.name == '/':
-                draft_name += ' (* %s)' % str(self.id)
-            else:
-                draft_name += ' ' + self.name
-        return (draft_name or self.name) + (show_ref and self.ref and ' (%s%s)' % (self.ref[:50], '...' if len(self.ref) > 50 else '') or '')
+            name += ' '
+        if not self.name or self.name == '/':
+            name += '(* %s)' % str(self.id)
+        else:
+            name += self.name
+        return name + (show_ref and self.ref and ' (%s%s)' % (self.ref[:50], '...' if len(self.ref) > 50 else '') or '')
 
     def _get_invoice_delivery_partner_id(self):
         ''' Hook allowing to retrieve the right delivery address depending of installed modules.