[FIX] account: wrong default bank journal returned

If no bank journal with no account set can be found, we should return False
instead of an empty record.

closes odoo/odoo#59609

X-original-commit: ececa74b96accd86bf9e9448d18526a905fed4c9
Signed-off-by: Alex Tuyls <alt-odoo@users.noreply.github.com>

addons/account/wizard/setup_wizards.py

@@ -116,7 +116,7 @@ class SetupBarBankConfigWizard(models.TransientModel):
 
     def default_linked_journal_id(self):
         default = self.env['account.journal'].search([('type', '=', 'bank'), ('bank_account_id', '=', False)], limit=1)
-        return default and default[0].id
+        return default[:1].id
 
     def set_linked_journal_id(self):
         """ Called when saving the wizard.