combine single node way

[anonymous]

What steps will reproduce the problem?

1. Select single node way and other way with common node
2. Combine ways (C)

What is the expected result?
merge dialog

What happens instead?
exception

Please provide any additional information below. Attach a screenshot if
possible.
Single node ways produced by Potlatch and Vespucci editors.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-08-07 01:35:24
Last Changed Author: Don-vip
Revision: 6115
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-08-07 00:04:24 +0200 (Wed, 07 Aug 2013)
Last Changed Rev: 6115

Identification: JOSM/1.5 (6115 ru) Linux Debian GNU/Linux unstable (sid)
Memory Usage: 121 MB / 455 MB (35 MB allocated, but free)
Java version: 1.7.0_25, Oracle Corporation, OpenJDK Server VM
Java package: openjdk-7-jre:i386-7u25-2.3.12-1
VM arguments: [-Xbootclasspath/a:/usr/share/icedtea-web/netx.jar, -Xms8m, -Dicedtea-web.bin.name=javaws, -Dicedtea-web.bin.location=/usr/bin/javaws, -Djava.security.manager, -Djava.security.policy=/etc/icedtea-web/javaws.policy]

Dataset consistency test:
[WARN - NO NODES] Way {Way id=29162089 version=18 VT nodes=[{Node id=320740038 version=5 V lat=53.6403413,lon=23.8634612}]} has only one node
[WARN - NO NODES] Way {Way id=29161206 version=17 VT nodes=[{Node id=320740038 version=5 V lat=53.6403413,lon=23.8634612}]} has only one node


Plugin: OpeningHoursEditor (29778)
Plugin: RoadSigns (29699)
Plugin: buildings_tools (29778)
Plugin: imagery_offset_db (29467)
Plugin: openstreetbugs (29435)

java.lang.ArrayIndexOutOfBoundsException: 1
	at org.openstreetmap.josm.data.osm.Way.getNode(Way.java:132)
	at org.openstreetmap.josm.actions.CombineWayAction.combineWaysWorker(CombineWayAction.java:127)
	at org.openstreetmap.josm.actions.CombineWayAction.actionPerformed(CombineWayAction.java:211)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1661)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2870)
	at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:306)
	at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:263)
	at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2962)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2954)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2833)
	at java.awt.Component.processEvent(Component.java:6282)
	at java.awt.Container.processEvent(Container.java:2229)
	at java.awt.Component.dispatchEventImpl(Component.java:4861)
	at java.awt.Container.dispatchEventImpl(Container.java:2287)
	at java.awt.Component.dispatchEvent(Component.java:4687)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1895)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:762)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1027)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:899)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:727)
	at java.awt.Component.dispatchEventImpl(Component.java:4731)
	at java.awt.Container.dispatchEventImpl(Container.java:2287)
	at java.awt.Window.dispatchEventImpl(Window.java:2719)
	at java.awt.Component.dispatchEvent(Component.java:4687)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
	at java.awt.EventQueue.access$200(EventQueue.java:103)
	at java.awt.EventQueue$3.run(EventQueue.java:694)
	at java.awt.EventQueue$3.run(EventQueue.java:692)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.awt.EventQueue$4.run(EventQueue.java:708)
	at java.awt.EventQueue$4.run(EventQueue.java:706)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)