> [Open-core Software Firm X] wants to use the work of contributors to an open source project to further their proprietary software goals, while maintaining their open source bait as a neutered stub.

Source-available software: https://en.wikipedia.org/wiki/Source-available_software

Open-core model > Examples: https://en.wikipedia.org/wiki/Open-core_model#Examples

Who can merge which pull requests to the most-tested and most-maintained branch of a fork?

CLAs are advisable regardless of software license.

Re: Free and Open Source governance models: https://twitter.com/westurner/status/1308465144863903744