**Description of the issue/feature this PR addresses:**
There is a bug with traceback on accounting dashboard when is clicked "Checks to print" on bank journal with more than one outgoing payment with "Checks" Payment Method.

**Steps to reproduce:**

1) With a database in v16 onwards, install the account_check_printing module.

2) Go to "Accounting / Configuration / Accounting / Journals" and create a new journal bank with more than one outgoing payment with "Checks" Payment Method.

3) Go to "Accounting / Vendor / Payments" and create a new payment with journal created on step 1 and "Checks" payment method and confirm.

4) Go to "Accounting" and on "Accounting dashboard" click on "Check to print" on Journal created on step 1 and then a bug with traceback is raised.

**Current behavior before PR:**
There is a bug with traceback on accounting dashboard when is clicked "Checks to print" on bank journal with more than one outgoing payment with "Checks" Payment Method.

**Desired behavior after PR is merged:**
There is not a bug with traceback on accounting dashboard when is clicked "Checks to print" on bank journal with more than one outgoing payment with "Checks" Payment Method.

**Video/Screenshot link:**
https://drive.google.com/file/d/1r6A3uMkFv2nIDZ1HYJLgj6e18pNH1P67/view

Ticket Adhoc side: 75606
Task latam: 1217

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Forward-Port-Of: odoo/odoo#168383