[API] skip_reconfirmation as no effect

Summary

It seems the optional parameter skip_reconfirmation has no effect when passed to user modification call.

Steps to reproduce

Doing a CURL call such has:

curl -X PUT \
  'http://git.harmonycms.net:10080/api/v4/users/6?private_token=?' \
  -H 'Cache-Control: no-cache' \
  -H 'Content-Type: application/x-www-form-urlencoded' \
  -H 'Postman-Token: df3b33f0-ef5a-9c40-c292-c03a5e6ed6b7' \
  -d skip_reconfirmation=true

What is the current bug behavior?

The value confirmed_at stays to null.

What is the expected correct behavior?

It's suppose to take a DateTime right?