Test case for
https://sourceforge.net/tracker/index.php?func=detail&aid=1733602&group_id=176962&atid=879332
Bug 1733602 - Price List including Tax Error

Create a tax category 25%

Create a tax rate of 25% from USA to USA

Create a BP exempt

Create a product with tax category 25%

Create a sales price list with tax included

Create a price list version

Create a product price with value 100

Create a sales order for the BP Exempt with price list with tax included

Create a sales order line - expected price = 80