tree b68e9d4704dbc958de41006f7ac3c263674e8847
parent 3fcd6705ddabb5387ebb4ba9cef1cdd15cbc2cd9
author Stuart McCulloch <mcculls@gmail.com> 1424281018 +0000
committer Stuart McCulloch <mcculls@gmail.com> 1424281018 +0000

Protect against null sources