s3 connection fails in Frankfurt region due to missing host argument

There is a known issue with Boto in which connections to Frankfurt require SigV4 which in turn requires a 'host' parameter:

BotoClientError: When using SigV4, you must specify a 'host' parameter.
http://stackoverflow.com/questions/26744712/s3-using-boto-and-sigv4-missing-host-parameter

When connecting manually with boto I can make it work by providing the host explicitly:
boto.connect_s3(host='s3.eu-central-1.amazonaws.com')

However, in Odo I don't have the ability to do this as the connect call is buried. Unfortunately I don't think it's possible to fix this in a boto config file. I was able to get it work by patching odo.backends.aws.get_s3_connection locally and hardcoding the host parameter which is not ideal.