The empty financial dimension value in the pending vendor invoices line details not updating in the View accounting page

If remove the Financial Dimension in the pending vendor invoice line details, the empty value not updating in the View accounting page, the previous value still showing. Whereas if change the financial dimension value with another value that will be working. Expecting: The financial dimension value should be blank in the view accounting page as it has been removed off in the pending vendor invoice line level. Accounts Payable> Invoices--> Pending vendor invoices --> New Invoice account: 1001 --> Number: TEST2 --> Add line Procurement category: Advertising --> Quantity: 1 --> Unit: ea --> Unit price: 100 Go to Line details> Financial dimensions --> Business unit: 001 Click on > View Accounting on the action tab Go back to the Pending vendor invoice line details and remove the Financial dimension Business Unit “001”so it is blank and Save View Accounting on the action tab --> Still the previous value showing