Some modules affect the node teaser, and so need to be able to show the user their changes in the node preview.
This is currently possible, but not very cleanly: see this thread for the gory details: http://drupal.org/node/204211
It would be better if hook_nodeapi allowed this.
Comments
Comment #1
steven jones commentedThis would be an API change.
Comment #2
joachim commentedThis may even be obsolete -- hook_nodeapi is long gone.
Comment #7
jhedstromAs mentioned 6 years ago, this is obsolete :)