1. Convert [818--beam--segfault--augmented.ifc](https://github.com/IfcOpenShell/files/blob/master/818--beam--segfault--augmented.ifc) with a5fd66706a5f3b4fca8c969570708c292ca8b1d6 (OCCT 7.3.0p4), and experience segfault: ``` FATAL: An error occurred, status code 139. ``` 2. Convert the same file with 42e0058 (Feb. 2019), and experience that the file converts successfully: <img width="400" alt="Screenshot 2020-03-31 at 11 58 58" src="https://user-images.githubusercontent.com/4601554/78013624-09a67e80-7347-11ea-9af0-eea1bb8c3023.png">