G/L Offset of free goods after Reprice

Why is the G/L offset of Free Goods taken from the line type constants when running the reprice program.

When running R42950 , if the line being repriced , is associated to free goods via Advanced pricing, those free goods lines in F4211 are canceled and recreated but with the G/L offset associated to the line type instead of the G/L offset associated to the fee goods item/branch, which is the case when the free goods lines are created from P42101 or P4210.