The company I work for is interested in using jQuery in a software project. However in order to do so we have to perform due dilergence checks that the code in jQuery meets the terms of its license. I realise that jQuery is offered under dual MIT and GPL licenses which is great.
However, is any review performed of contributions made to the code to understand whether the contributor has the right to redistribute the code or does the maintainer accept contributions without asking these types of questions? Also, are contributors required to accept/sign any kind of contributor’s statement? If yes could someone provide a copy?