Interesting. This is from 2010, but random googling took me here: https://github.com/snapframework/snap-server/commit/5e4850d4...

    The situation is quite simple:

    - pre-existing work I contributed to this project remains under my copyright
    - contributions other people make to this project remain under their own copyrights
    - contributions I make to this project subsequent to November 2010 are under Google copyright
    - nobody should really give a shit about this because a) I freely agreed to this even though Google has a process where I could have asked to retain my own copyright because b) the code is BSD licensed and you can use it however you like regardless of who owns the copyright.

~ https://github.com/gregorycollins