Fix concatenation of node roles and nodes info for cluster mode.
@@ -2593,7 +2593,7 @@ class Djinn
# If we have an already running node with the same IP, we change its
# roles list.
- new_nodes_info << node_roles unless node_roles.empty?
+ new_nodes_info += node_roles unless node_roles.empty?
@state_change_lock.synchronize {
@nodes.each { |node|
delete_index = nil
