Fix sending undefined as part of changes to server
Fix sending undefined as part of changes to server

scrollback/pure,belng/pure,scrollback/pure,belng/pure,Anup-Allamsetty/pure,Anup-Allamsetty/pure,Anup-Allamsetty/pure,scrollback/pure,belng/pure,scrollback/pure,belng/pure,Anup-Allamsetty/pure