unexpected expection when expanding validator results

[richlv]

downloaded an area, removed some duplicated buildings, uploaded the results. expanded "warnings" in the validator - error

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-02-06 02:31:34
Last Changed Author: Don-vip
Revision: 5697
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-02-06 01:35:48 +0100 (Wed, 06 Feb 2013)
Last Changed Rev: 5697

Identification: JOSM/1.5 (5697 en)
Memory Usage: 304 MB / 682 MB (213 MB allocated, but free)
Java version: 1.6.0_24, Sun Microsystems Inc., OpenJDK 64-Bit Server VM
Operating system: Linux
Dataset consistency test: No problems found

Plugin: PicLayer (29210)
Plugin: reverter (29216)
Plugin: terracer (29210)

org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Way id=110794428 version=1 MDT nodes=[]}
	at org.openstreetmap.josm.data.osm.OsmPrimitive.checkDataset(OsmPrimitive.java:326)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.getReferrers(OsmPrimitive.java:896)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.getReferrers(OsmPrimitive.java:917)
	at org.openstreetmap.josm.data.validation.tests.DuplicateWay.isFixable(DuplicateWay.java:300)
	at org.openstreetmap.josm.data.validation.TestError.isFixable(TestError.java:226)
	at org.openstreetmap.josm.gui.dialogs.ValidatorDialog.setSelection(ValidatorDialog.java:415)
	at org.openstreetmap.josm.gui.dialogs.ValidatorDialog.access$700(ValidatorDialog.java:66)
	at org.openstreetmap.josm.gui.dialogs.ValidatorDialog$ClickWatch.mouseClicked(ValidatorDialog.java:464)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:270)
	at java.awt.Component.processMouseEvent(Component.java:6392)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3268)
	at java.awt.Component.processEvent(Component.java:6154)
	at java.awt.Container.processEvent(Container.java:2045)
	at java.awt.Component.dispatchEventImpl(Component.java:4750)
	at java.awt.Container.dispatchEventImpl(Container.java:2103)
	at java.awt.Component.dispatchEvent(Component.java:4576)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4633)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4306)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4227)
	at java.awt.Container.dispatchEventImpl(Container.java:2089)
	at java.awt.Window.dispatchEventImpl(Window.java:2518)
	at java.awt.Component.dispatchEvent(Component.java:4576)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:672)
	at java.awt.EventQueue.access$400(EventQueue.java:96)
	at java.awt.EventQueue$2.run(EventQueue.java:631)
	at java.awt.EventQueue$2.run(EventQueue.java:629)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:116)
	at java.awt.EventQueue$3.run(EventQueue.java:645)
	at java.awt.EventQueue$3.run(EventQueue.java:643)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:642)
	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:13

[Lesath]

Closed as duplicate of #8344 .
This was already reported in #8344 - but here is the more extensive Stacktrace.