Since the Forms product introduced the field reference in each type of field, the field name was removed from the UI, but continues on being indexed in the search engine as a field identifier. But now, customers, that use search widgets that require knowing the exact name of the field, don't have access to that data anymore.
This was originated from another Spike (
LPS-128344). We must assess the chosen approach in order to compare with the results of the previous one.