Only lerna-labeled PRs are included in changelog, while ALL contributors are

[anselmbradford]

If you label some PRs with lerna-labels (bug, enhancement, etc.) they get included in the changelog. However, ALL contributors from lerna-labelled and non-labelled PRs get included. Is this a bug and/or something that can be configured? It seems like it should only be including contributors to the PRs that are listed in the changelog.

For context, this is coming up in a repo that has packages published to NPM as well as a github pages website. PRs to the website should not be included in the changelog, while PRs to the packages should. We only want the authors of changes to the packages to show up in the changelog, but authors of PRs to both the packages and the website are included, regardless of which PRs are included.