[0.47.8](https://github.com/projen/projen/compare/v0.47.7...v0.47.8) (2021-12-30)
Bug Fixes
* **build:** build should fail if mutations were found ([1428](https://github.com/projen/projen/issues/1428)) ([37e2ed2](https://github.com/projen/projen/commit/37e2ed289cff656d8a3d5b9ad4b24aa48a112bf3)), closes [#1423](https://github.com/projen/projen/issues/1423) [#1422](https://github.com/projen/projen/issues/1422)