Normally records of reclassifications, updates, etc. are not displayed
in full chronology views. This
preference allows users to indicate whether these records should be included
in full chronology views.
Note: these records display
only in full views, not in brief views.
Here is a sample label change and edit (update) record.
Note that label change records are labeled "reclassification"
and can be shown in a topic view at any time, even without enabling this