v0.12.1

Dependencies

• Unpin straight.plugin dependency. It was pinned to avoid a bug
  which has since been fixed in the latest releases
  (#564).

Bug Fixes

• Rather than returning an HTTP 500 when authenticating with two
  separate identity providers using the same email, return a HTTP 400
  to indicate the client should not retry the request and inform them
  they must log in with the original identity provider
  (#563).