When does the FSF own your code?

IANAL but I know my employment contract says all the rights, including the moral ones, belong to them. The propaganda I have heard it that this is standard language and whoever wrote that contract presumably *is* a lawyer.

Many other organisation have similar rules: if you, as a student, do something of commercial value at a university then expect them to take at least a substantial cut of any profit derived from it. I expect that is enforcible.

I have raised this matter and said that presumably my employers don't want to do anything to prevent their employees improving their qualifications.

Almost everywhere if you transfer a transferable right then you don't have it any more. Ergo a right transferred to the FSF belongs to them.