: I updated the Index using SolrJ and got the exact same error message there aren't a lot of specifics provided in this thread, so this may not be applicable, but if you mean you actaully using the "atomic updates" feature to update an existing document then the problem is that you still have the existing value in your name2 field, as well as another copy of the "name" field evaluated by copyField after the updates are applied...
http://wiki.apache.org/solr/Atomic_Updates#Stored_Values -Hoss
