Fix
* fix: Merge pull request 155 from IBM/fix/issue_149b
Fix/issue 149b - convert Union[A, A] to Union[A, conlist(A, min_items=2)]
closes 149 ([`7ded03e`](https://github.com/oscal-compass/compliance-trestle/commit/7ded03e92e0b3fc8a6b9ef4e7fb4294bbd26b0b5))
Unknown
* bugfix issue 149 - Union[A, A] -> Union[A, conlist(A, min_items=2)] ([`4f6f6a9`](https://github.com/oscal-compass/compliance-trestle/commit/4f6f6a970dcf0919d3a33500544a54651df92b07))