Drilldown displays formulas without parenthesis, and cannot be copied back into line item

Description of the RFE:

Users are copying and pasting formula from drilldown dialog, which isn't possible because parenthesis are removed. This is an RFE to retain the parenthesis, or at least provide that option.

Use case:
Drilldown formula is removing parenthesis. This is causing come issues for us working with a large formula as we try to paste the formula from the drill down back into the line item.