Why are team member credit percentage totals at the proposal level checked across all projects on th

On the Resources page of Maintain Proposal, if you have multiple projects, the team members credit percentages checked to be sure they do not total to over 100% when you save the page. However, this check actually sums the credit percentage for all projects on the proposal instead of checking if each individual project's total credit is over 100%. So if you have two projects with one team member each, they can only have 50%.

We'd like to mod this so it will calculate only if individual projects are over 100% (pretty easy to do by just moving some existing code inside a for-loop instead of outside it), but I can't be sure of the scope that change might have or if this is how it's intended to work.