Full copying of nodes with custom fields.

That's definitely something that I'd like to resolve. Right now I'm trying to figure out what kinds of information in a node would break by copying things over. The one things I'm concerned about is relationships between nids and other ids. I'm hoping to have at least an initial answer by the weekend.

Here is an attempt to use full copying of the node. So far it works with revisions, image_attach, og, cck and taxonomy. Deletions and exceptions seem to be working, as well. While this is a big change, it is a small chunk of code and would add a lot of functionality.

I have a feeling it might also resolve pathauto issues from http://drupal.org/node/87394.

Please test it out and let me know how it goes.

If people are opposed to this or it proves problematic, I'm willing to use the method originally proposed for groups (http://drupal.org/node/64471), but I wanted to give this method a shot first as it kills several birds with one stone.

Ok everything seems to work as expected here. Node are fully copied with og, cck and taxonomy proprieties.

Committed to HEAD.