Technically true, but everyone knows this already. The GNU GPL 2.0 (1991) advises employees get their boss to sign-off on contributions:

You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker.

signature of Ty Coon, 1 April 1989

Ty Coon, President of Vice

Note, I'm hoping this extract of the GNU GPL is "fair use", otherwise I'd have to quote it verbatim.