sillsm just responded:

Hi Andre, I'm Max from Google's open source office.

Thanks for bringing this to our attention. We've stared at both repos, and we're having trouble finding any actual copy/pasted code between them.

We don't strip license headers or change code licenses intentionally. We always aim to respect open source licenses. If we made a mistake here, please help us fix it.

It looks like GoogleCloudPlatform/google-cloud-gemserver depends on gemstash existing, but we can't find any copied code. It doesn't appear to be a fork.

We'd really appreciate it if you could give us pointers to the code you think was copied from your project, so we can fix it.