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Area

user-profile

Describe the bug

When I create a field in the user profile and add a length min/max validation to it, the error message doesn't show in the admin UI, the user is not saved, and an exception is shown in the console.

Version

main

Regression

[ ] The issue is a regression

Expected behavior

The validation error should be shown.

Actual behavior

No validation error is shown

How to Reproduce?

Create a new field and add a length validation to it

<img width="1047" height="274" alt="Image" src="https://github.com/user-attachments/assets/daa11ca7-0fcc-42b3-8c18-d616293757af" />

<img width="750" height="241" alt="Image" src="https://github.com/user-attachments/assets/71cc86c5-40d8-447d-83df-de54e288358a" />

Anything else?

The problem is that the length validation error adds integer parameters, while front end only expects strings.

I'll provide a fix.