When Username Is Updated, User Is Logged Out about passport-local-mongoose HOT 1 OPEN

schema.statics.serializeUser = function() {
    return function(user, cb) {
        cb(null, user.get(options.usernameField));
    }
};

schema.statics.deserializeUser = function() {
    var self = this;

    return function(username, cb) {
        self.findByUsername(username, cb);
    }
};

schema.statics.serializeUser = function() {
    return function(user, cb) {
        cb(null, user.id);
    }
};

schema.statics.deserializeUser = function() {
    var self = this;

    return function(id, cb) {
        self.findOne(id, cb);
    }
};