API: User endpoint doesn't the update of an email with e a different case

Issue Summary

Trying to PATCH the email with the same value using a different case doesn't work.
As an example, if the user has the email superemailtest2@superemail.com and we try to update it to Superemailtest2@superemail.com it fails with:

But if I do the same on the UI, it works without problems:

Steps to Reproduce

1. Run a PATH (thru swagger or curl) with content similar to the below, passing the same email the user has but with a different case:

   [
       {
           "op": "replace",
           "path": "email",
           "value": "Superemailtest2@superemail.com"
       }
   ]
   

   Expected Results

TBD by Product Team

Actual Results

The error below is returned:

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available