Comment by ezekg

To me, this seems to be a misunderstanding of the license text and the author's intent. The original license simply reserved all distribution rights. People assumed you couldn't even fork into a public GitHub repo in order to make pull requests, but afaict, the author clarified that the intent was not to prevent forking on GitHub, but to prevent redistribution of the forked software instead of contributing the changes back upstream. The right to make changes to the software for internal use was always there, afaict.