thanks a lot for your work. i am learning a lot about drupal with this distribution.
i just updated to the 7.x-2.8 and all works well.
i cloned a message and found that fields were not cloned.
i found a bojanz patch that solved it.
it is included in the dev version on message module.
so i request, if you could, please, include in the next release the patch or the dev version, for people not to spend a couple of hours to find the solution.
bojanz: thanks for the patch :)