Missing bodies are not caught by cf-promises and rather generate "Type mismatch on rhs" error

If a body is missing, I would expect that this was detected and pointed out.
This could happen if the standard library is not included or if the body name is mistyped.

However, the following policy:

bundle agent test
{
  commands:
    "/bin/echo 123"
    action => if_repaired("echo_repaired");
}

generates the following error when run standalone on 3.6.5:

<pre>

1. cf-agent -K nonexistant_body_warning.cf -btest
   2015-04-30T21:40:22+0000 error: /default/test/commands/'/bin/echo 123'[0]: Type mismatch on rhs - expected type f for boolean constraint 'action'
   2015-04-30T21:40:22+0000 error: /default/test/commands/'/bin/echo 123'[0]: Promise belongs to bundle 'test' in file 'example.cf' near line 4
   2015-04-30T21:40:22+0000 error: /default/test/commands/'/bin/echo 123'[0]: Fatal CFEngine error: Aborted
   </pre>