Cancelled invoices are accounted in GL

Summary

When cancelling an invoice which has never been accounted before same is being accounted in the GL

Content

Actually i have an issue @ AP level. When we are cancelling and invoice which has never been accounted before same is being transferred to GL at time of create accounting. Is there a way to prevent the system from accounting a cancel invoice.

Below is a brief summary of how this can happened:

User input an invoice on AP module validate it then before initiate for approval he noticed that same has wrong currency i.e USD i/o EUR - Since invoice has already been validated we cannot delete it.