How to inhibit the possibility to enter multiple NIDs using the same National Identifier Type

Summary

How to inhibit the possibility to enter multiple NIDs using the same National Identifier Type

Content

Hi,

we are encountering an unwelcome behavior when filling in the sensitive information block in job application flow. We noticed that there is the possibility to enter multiple values of the NID with the same National Identifier Type (for instance multiple values of the Fiscal Code, as you can see in the screenshot 'National_Identifier.PNG'), only changing the field 'Country'. This behavior is very unwelcome for our customer. Is this an expected behavior, or it is an issue? If this behavior is standard is there the possibility to show an alert to the candidates which deter them from entering another NID with