PO Distribution Split quantities not recalculating

Summary:

When the line quantity on purchase order is change the Distribution Split quantities not recalculating

Content (required):

I have a purchase order line(created from PR) for which the distribution quantity split for multiple charge account. If I change the quantity at the line level, then save, the quantities at the distribution level are not recalculated based on the new line quantity. I would require that the distribution quantities to be recalculated based on the new line quantity. Is there a way to achieve this?

Also, when a purchase line that has split distribution quantities is duplicated the new line does not have the split distribution quantities. Is there a way to have the split duplicated also?