On 28 Aug, 14:19, Karl Groves <k...@NOSPAMkarlcore.com> wrote:
> Actual ownership of copyrights (including all source code) remains in the
> hands of the creator of the work except in instances where that material
> was created as part of an established "work-for-hire" agreement.

Or an "unestablished" work for hire agreement. UK law is quite broad
in what it includes under those. Many volunteers will be treated as
such.