Error when adding a node in the middle of a way

[Mongenet]

What steps will reproduce the problem?

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if
possible.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-09-11 01:31:22
Last Changed Author: bastiK
Revision: 3522
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-09-10 23:35:48 +0200 (Fri, 10 Sep 2010)
Last Changed Rev: 3522

Identification: JOSM/1.5 (3522 fr)
Memory Usage: 625 MB / 1776 MB (274 MB allocated, but free)
Java version: 1.6.0_21, Sun Microsystems Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Linux
Dataset consistency test: No problems found

Plugin: turnrestrictions (22477)
Plugin: wmsplugin (22964)

java.lang.IllegalArgumentException: {Node id=256602407 version=1 MVD lat=46.232926993599456,lon=6.0468160978733625} is already deleted
	at org.openstreetmap.josm.command.DeleteCommand.executeCommand(DeleteCommand.java:117)
	at org.openstreetmap.josm.command.SequenceCommand.executeCommand(SequenceCommand.java:53)
	at org.openstreetmap.josm.data.UndoRedoHandler.addNoRedraw(UndoRedoHandler.java:36)
	at org.openstreetmap.josm.data.UndoRedoHandler.add(UndoRedoHandler.java:58)
	at org.openstreetmap.josm.actions.mapmode.SelectAction.mouseReleased(SelectAction.java:484)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
	at java.awt.Component.processMouseEvent(Component.java:6267)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6032)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)