Exclude categories from target without resetting category budget

When editing the “Excluded from target” section on the Target tab, it would be helpful if the “analyzing spending…” message could be avoided or optional. This message recalculates the target amount and resets all of the category budgets, which is inconvenient when I only want to exclude one category.

I shouldn’t have to re-enter all of my category budgets each time I want to exclude one category from target.