IAE: Node is already deleted (merge)

[anonymous]

What steps will reproduce the problem?

1. error thrown when merge points shortcut used

What is the expected result?

What happens instead?

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

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-05-02 23:28:33 +0200 (Tue, 02 May 2017)
Build-Date:2017-05-02 21:34:40
Revision:12039
Relative:URL: ^/trunk

Identification: JOSM/1.5 (12039 en) Windows 7 64-Bit
Memory Usage: 887 MB / 910 MB (93 MB allocated, but free)
Java version: 1.8.0_121-b13, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 2560x1600
Maximum Screen Size: 2560x1600
Dataset consistency test: No problems found

Plugins:
+ AddrInterpolation (33160)
+ BuildingGeneralization (1010)
+ FixAddresses (33182)
+ ImproveOsm (107)
+ Tracer (33004)
+ Tracer2 (33004)
+ alignways (33182)
+ areaselector (1489184284)
+ buildings_tools (33004)
+ contourmerge (1030)
+ czechaddress (33252)
+ graphview (33004)
+ junctionchecking (33249)
+ log4j (32699)
+ matsim (v0.7.7)
+ measurement (33088)
+ pointInfo (33131)
+ public_transport (33166)
+ public_transport_layer (33088)
+ reltoolbox (33311)
+ routing (33004)
+ scoutsigns (101)
+ splinex (33160)
+ terracer (33088)
+ turnlanes (33294)
+ turnrestrictions (33088)
+ utilsplugin2 (33328)
+ wikipedia (33288)

Last errors/warnings:
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- E: Handled by bug report queue: java.lang.IllegalArgumentException: {Node id=-161993 version=0 MVD lat=47.0183194,lon=8.3083723} is already deleted


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (21) of main
java.lang.IllegalArgumentException: {Node id=-161993 version=0 MVD lat=47.0183194,lon=8.3083723} is already deleted
	at org.openstreetmap.josm.command.DeleteCommand.executeCommand(DeleteCommand.java:173)
	at org.openstreetmap.josm.command.SequenceCommand.executeCommand(SequenceCommand.java:65)
	at org.openstreetmap.josm.data.UndoRedoHandler.addNoRedraw(UndoRedoHandler.java:53)
	at org.openstreetmap.josm.data.UndoRedoHandler.add(UndoRedoHandler.java:81)
	at org.openstreetmap.josm.actions.MergeNodesAction.actionPerformed(MergeNodesAction.java:92)
	at javax.swing.SwingUtilities.notifyAction(Unknown Source)
	at javax.swing.JComponent.processKeyBinding(Unknown Source)
	at javax.swing.KeyboardManager.fireBinding(Unknown Source)
	at javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
	at javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
	at javax.swing.JComponent.processKeyBindings(Unknown Source)
	at javax.swing.JComponent.processKeyEvent(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.KeyboardFocusManager.redispatchEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(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.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(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)