unique_encrypted doesn't support "except" or "idColumn" constraints

[conroyp]

https://laravel.com/docs/5.8/validation#rule-unique

Laravel's validation rules allow for except conditions to be passed to a rule. This allows for validation rules on an update of a user account to ensure that the user's email address is unique, excluding their own user record. This can be done via Rule objects, or by adding the exceptional values to the piped-format validation rule string.

The syntax would look something like:

'email' => 'required|email|unique:users,email,'.$user_id,

When using the unique_encrypted validation rule, only the first two parameters get handled. This means that an attempt to update a user record by posting a full user object will throw a validation error due to the email address already existing in the database.