This occurs when saving an new entry that is created from the Duplicate link
(contact.php?mode=new&id=##)
Problem occurs if there are any Communications entries (or Information?) linked
to an address. The record will save, a new entry is created for the duplicate,
but the address associated information is lost
Repeatability:
This is Repeatable on SourceForge.
try duplicating Mike M Atkin #145
http://tab-2.sourceforge.net/contact/contact.php?mode=new&id=145
There is on phone number linked to address "Nepean".
When the duplicate is saved this phone number is lost.