Error message on node update after node_validate()

Synopsis: I do some auto creation/update in the behind. Everything is ok if I don't run node_validate() on the profile node. This is needed, because some data might wrong but if $node->nid is present and there's a user with the node's author names, you'll receive an error (check content_profile.module around line 394). This is because the code doesn't check that the node id is the same as the old node id (update).

If you agree with me, I'll make a patch for this soon.