Invoice will not approve when "Export to accounting" is true

Overview:
Steps to Reproduce:

1. Log into folio-testing
2. Click invoice app
3. Create invoice by selecting a Vendor with ONLY a default accounting code
4. Set "Export to accounting" to true for the invoice
5. fill required fields
6. Create invoice line with all required fields
7. Click approve invoice

Expected Results: Invoice is successfully approved. The invoice does have an accounting code populated

Actual Results: Cannot approve invoice error is displayed because the system thinks the invoice has no accounting code.

NOTE: This is likely due to recent updates to invoice allowing the account number to be stored as well as accounting code. Because "Default" accounting code does not have a corresponding account number the approval fails?

Additional Information: see screenshots

URL:
Interested parties: