Please let's not reopen this issue. Jambunathan signed the FSF copyright assignment for his past and future changes to Emacs code. He claims that he can retract this assignment for changes he made against some Emacs files. FSF says this is not possible.
And it does not take too big a brain to understand why: if people were allowed to retract their assignment when they want for changes that have been published, the copyright assignment process would undermine the whole purpose of the GPL license, which is to make it possible to let *others* contribute to free code. If there were a problem, it would be a problem for Emacs, not for upstream Org-mode, which can include any GPL code. But there is no problem. Just someone upset, in bad need for a ban. -- Bastien