* **room2d:** Ensure extension attributes are conserved in intersect ([afe209e](https://github.com/ladybug-tools/dragonfly-core/commit/afe209ed0b7efc7e1e1e9d2d1f1b39789159702c))
* **model:** Ensure that Model geoJSON id is a string ([5fa8adc](https://github.com/ladybug-tools/dragonfly-core/commit/5fa8adc29140b425e09fc8c4c732392bfec140ed))
* **building:** Handle cases of duplicate vertices with try/except ([03fdb73](https://github.com/ladybug-tools/dragonfly-core/commit/03fdb73fab52dfc02ce77de22293093240d3dc23))