UpdaterEngine swallows exceptions

Hi,

In our project, we are currently working very hard to implement some updater modules that will upgrade our content from CMS 2.09.06 to 2.12.05.
We use the UpdaterItemVisitor.QueryVisitor to apply changes to nodes that match a given query.

Running the query that finds nodes on a given path of type hippo:handle, hippostd:directory, hippostd:folder with the repository tool, returns 440 results.
Our updatermodule that registers a UpdaterItemVisitor.QueryVisitor with the exact same query, eventually affects 432 nodes...

Why?

After some debugging we found the following:

The UpdaterEngine, line 819-843 happily swallows exceptions such as PathNotFoundException, InvalidItemStateException, ItemNotFoundException.
Additionally, these exception are not logged.

This really does not help debugging any problems/bugs that are present, such as: CMS7-3911

Please address this.

Regards,

Rob