[rules-users] Serialization issue.

Dear all, Some time ago I've submitted a pull request (#353) fixing a situation where a rule with large text prevent the serialization of the knowledge package. This is now the only thing that prevent us form using the original distribution. If there's nothing wrong or risky in it, it is possible for you apply the fix so we can use the latest snapshot? Thank you very much for your patience :) Regards, Federico.