I currently have code that looks like this

private string _stringField;

protected string StringField
{
    get
    {
        if (_stringField == null)
            _stringField = GetStringField();
        return _stringField;
    }
}

ReSharper is suggesting I change the property to:

protected string StringField
{
    get
    {
        return _stringField ?? (_stringField = GetStringField());
    }
}

This isn't an idiom I've seen before and probably would have to think about the first time I saw it; is this something I should be concerned would confuse other people too?