To replicate:

1. Create different grade categories using different aggregation methods
   • The methods must be using aggregation coef
2. Create a new outcome item

Actual:

• An error message is displayed because the help language string is not found for aggregationcoef

Expected:

• There are no errors.

It seems to be caused because we loop over all categories to find the help to display. We should apply the same logic than in the form for items.