Error message trying to edit a restriction element

[Atalanttore]

What steps will reproduce the problem?

1. Download data for ​this highway (SRs 12).
2. Select a section of the highway which you see on the map of this permalink.
3. Open a restriction element for editing.

What is the expected result?
Edit menu for elements

What happens instead?
Error message

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-01-26 02:32:20
Last Changed Author: bastiK
Revision: 2894
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-01-25 23:05:57 +0100 (Mon, 25 Jan 2010)
Last Changed Rev: 2894

Memory Usage: 154 MB / 439 MB (39 MB allocated, but free)
Java version: 1.6.0_0

Dataset consistency test:
No problems found



java.lang.AssertionError
	at org.openstreetmap.josm.gui.dialogs.RelationListDialog.selectRelation(RelationListDialog.java:225)
	at org.openstreetmap.josm.gui.dialogs.properties.PropertiesDialog.membershipEdit(PropertiesDialog.java:320)
	at org.openstreetmap.josm.gui.dialogs.properties.PropertiesDialog$EditAction.actionPerformed(PropertiesDialog.java:946)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:253)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
	at java.awt.Component.processMouseEvent(Component.java:6108)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:5873)
	at java.awt.Container.processEvent(Container.java:2105)
	at java.awt.Component.dispatchEventImpl(Component.java:4469)
	at java.awt.Container.dispatchEventImpl(Container.java:2163)
	at java.awt.Component.dispatchEvent(Component.java:4295)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055)
	at java.awt.Container.dispatchEventImpl(Container.java:2149)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4295)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:604)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)

[jttt]

(In [2914]) Fixed #4451 Error message trying to edit a restriction element