Plugin validating unique on a non unique field

[ValentinGB]

I have the following schema

const   mongoose        = require('mongoose'),
        uniqueValidator  = require('mongoose-beautiful-unique-validation'),
        Schema          = mongoose.Schema;

const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;

const ClientSchema = new Schema({
    name: {
        type: String,
        required: [true, 'Campo nombre es requerido'],
    },
    email: {
        type: String,
        unique: 'Ya existe un cliente registrado con el correo: \'{VALUE}\'',
        required: [true, 'Campo email es requerido'],
        validate:  {
            validator: v => re.test(v),
            message: props => `Ingrese un correo valido`
        }
    },
    address: {
        type: String,
        required: [true, 'Campo dirección es requerido'],
        validate:  {
            validator: v => v.length >= 5,
            message: props => `Ingrese una dirección valida`
        }
    },
    phone : {
        type: String,
        unique: 'Ya existe un cliente registrado con el telefono: \'{VALUE}\'',
        required: [true, 'Campo telefono es requerido'],
        validate:  {
            validator: v => !isNaN(v) && v.length >= 7,
            message: props => `'${props.value}' no es un número telefónico válido`
        }
    }
});
ClientSchema.plugin(uniqueValidator);

The problem is, that mongoose-beautiful-unique-validation is validating address as an unique field when I never set the unique property on that field.