vm.rb in virtualbox-0.7.2

- old
+ new

@@ -172,11 +172,11 @@
     relationship :vrdp_server, :VRDPServer
     relationship :storage_controllers, :StorageController, :dependent => :destroy
     relationship :medium_attachments, :MediumAttachment
     relationship :shared_folders, :SharedFolder
     relationship :extra_data, :ExtraData
-    relationship :forwarded_ports, :ForwardedPort
+    relationship :forwarded_ports, :ForwardedPort, :version => "3.1"
     relationship :network_adapters, :NetworkAdapter
     relationship :usb_controller, :USBController
     relationship :current_snapshot, :Snapshot
 
     class << self
@@ -527,10 +527,15 @@
     # Discards any saved state on the current VM. The VM is not destroyed though
     # and can still be started by calling {#start}.
     #
     # @return [Boolean] True if command was successful, false otherwise.
     def discard_state
-      control(:forget_saved_state, true)
+      # Since the VM should be saved as it is, we don't open an
+      # existing session like the other control methods. We open a new
+      # session.
+      with_open_session do |session|
+        session.console.forget_saved_state(true)
+      end
     end
 
     # Controls the virtual machine. This method is used by {#stop},
     # {#pause}, {#resume}, and {#save_state} to control the virtual machine.
     # Typically, you won't ever have to call this method and should