It would be helpful if aggregate outputs weren't optimised when looping round them for debugging purposes.
Take the example below, the aggregate being looped around has multiple results and loops round the code for each of those results, however it is not possible to see the results of the output all at once to compare them and only the current result is shown. The only way to see the results side by side is to go to the aggregate itself and set test data for the current input for all of the filters.
Given that all of the list results are being used anyway for the loop, it would be better if you could see the entire list in the debug window rather than truncating the results.