[development] node not fully loaded in hook_update() in node admin form

[augustin (beginner)]

Hello again,

I have a different but related problem:
If I update a node (e.g. published /not published) using the admin form at 
admin/content/node , hook_update() does not have the full node either, and 
notices are spewed out because none of my custom fields defined in 
hook_load() are set.

Are hook_view() and hook_update() supposed to node_load() the nodes 
themselves?

Looking back at some of my modules, I see some instances where I have done 
$node =  mynodetype_load($node) to get a full node.


Thanks,

Augustin.