id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4149	v2608: can't undo a way reverse with automatic correction to left/right tags	anonymous	team	"I consistently get an ""Unexpected exception"" error when I try to undo a way reversal which had implied automatic left/right tags correction

1)I select the ""reverse way"" command on a way containing tags like value:right / value:left
2)in the ""Automatic tag correction"" window I accept the proposed changings by selecting ""Apply selected changes""
3)If I now select the ""Undo the last action"" command, it results an ""Unexpected exception"" window, with the following info:

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2009-12-11 02:31:44
Last Changed Author: ce
Revision: 2608
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2009-12-10 23:49:06 +0100 (Thu, 10 Dec 2009)
Last Changed Rev: 2608

Memory Usage: 65 MB / 508 MB (22 MB allocated, but free)
Java version: 1.6.0_17

Dataset consistency test:
{Way id=27982464 version=3 MVDd nodes=[]} not found using Dataset.searchWays()
{Way id=27982473 version=2 MVDd nodes=[]} not found using Dataset.searchWays()
{Way id=27982666 version=2 MVDd nodes=[]} not found using Dataset.searchWays()
{Way id=27982864 version=3 MVDd nodes=[]} not found using Dataset.searchWays()
{Way id=27983075 version=4 MVDd nodes=[]} not found using Dataset.searchWays()


Plugins: editgpx,remotecontrol,validator,waydownloader,wmsplugin
Plugin editgpx Version: 18962
Plugin remotecontrol Version: 18678
Plugin validator Version: 18962
Plugin waydownloader Version: 18962
Plugin wmsplugin Version: 18953

java.lang.NullPointerException
	at org.openstreetmap.josm.data.osm.Way.load(Way.java:197)
	at org.openstreetmap.josm.command.Command.undoCommand(Command.java:94)
	at org.openstreetmap.josm.command.SequenceCommand.undoCommands(SequenceCommand.java:76)
	at org.openstreetmap.josm.command.SequenceCommand.undoCommand(SequenceCommand.java:81)
	at org.openstreetmap.josm.data.UndoRedoHandler.undo(UndoRedoHandler.java:72)
	at org.openstreetmap.josm.actions.UndoAction.actionPerformed(UndoAction.java:34)
	at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
	at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.awt.Component.processMouseEvent(Unknown Source)
	at javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
"	defect	closed	normal		Core	latest	fixed	undo reverse left right