Can you post the full facelet page that generates the validation error? (I don't see any validators in your code)
What is the validation error you are receiving?
Until 4.3.4 is release, make sure your domain objects implement hasCode (see: RF-13060).
RequestScoped was the problem (I didnt' post my deviceTags.java code)
I switched to ConversationScoped (I am using CDI) and this problem disappeared.