Unable to remove "Approval for cost accounting” for correction transaction created (MCPR)

This problem is related to flow MCPR (MHS) using only standard solution.

When creating corrections on project transactions in Customer Company, if the user tries to set Approval Flag to False of this Recreated line, then the following error will be there

---------------------------

Error - IFS Applications

---------------------------

It is not possible to modify the approval for cost accounting since the connected multi-company transaction in company {Customer Company ID} is invoiced.

---------------------------

[OK]      

---------------------------

Test plan:

Create a Project Transactions in the Employee company then Approve both for Cost accounting once Customer Transactions are created.

Next, create an invoice for the Transaction in the Employee company and "Send and Release" the invoice

Next, go to the Project Transaction screen and query for the Customer Company Transaction created

RMB the line and Click "Create Correction Transactions"

Now select the Recreated Line, then RMB and click "Remove Approval for Cost Accounting" > the above error will be triggered.

Does this qualify as a bug or is this a valid argument?