Magento 2.3.5-p1 - Discount Description, Coupon Codes on Invoices Broken

[kdjmonaghan]

Preconditions (*)

1. Magento 2.4-develop
2. Magento 2.3.5-p1 Installation
3. Valid Coupon with a Description

Steps to reproduce (*)

1. Create valid Coupon with Description Populated (fill the description with say 200 characters for emphasised issue)

2. Create an Order using said Coupon
3. View Order in CMS at Discount Line (discount line description has changed from hisitoric orders, to be the coupon description)
4. Generate Invoice (Invoice discouunt line has also changed)
5. Print PDF (Discount line does not show Coupon Code anymore, but the description)

Expected result (*)

1. Coupon Code to be shown in Description on Order, Invoice and Invoice PDF

Actual result (*)

1. Coupon Code is missing from Order, Invoice and Invoice PDF as Discount Description column is now being populated with the description field and not the invoice when Description is populated.

Note: If the coupon is without a description then the coupon code is displayed

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Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• [ ] Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• [ ] Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• [x] Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• [ ] Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• [ ] Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.