JOSM has thrown an exception while uploading a selected part of changes

[Pepou]

Hard to tell whether the problem is reproducible. In a village with some changes I've selected an area and pressed "Upload Selection". Everything was checked, a changeset 8823980 was successfully opened, afterwards "Postprocessing uploaded data ..." took tooo long... and that was it.

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2011-07-11 01:31:35
Last Changed Author: stoecker
Revision: 4223
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2011-07-10 22:46:41 +0200 (Sun, 10 Jul 2011)
Last Changed Rev: 4223

Identification: JOSM/1.5 (4223 sk)
Memory Usage: 246 MB / 455 MB (118 MB allocated, but free)
Java version: 1.6.0_25, Sun Microsystems Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Windows 7
Dataset consistency test: No problems found

Plugin: DirectDownload (26174)
Plugin: ElevationProfile (26174)
Plugin: OpeningHoursEditor (26284)
Plugin: buildings_tools (26254)
Plugin: openstreetbugs (26299)
Plugin: turnlanes (26316)
Plugin: turnrestrictions (26299)

org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=1373570624 version=0 MV lat=48.96387079304513,lon=20.094105785499316}
	at org.openstreetmap.josm.data.osm.OsmPrimitive.checkDataset(OsmPrimitive.java:305)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.getReferrers(OsmPrimitive.java:837)
	at org.openstreetmap.josm.gui.dialogs.properties.PropertiesDialog.selectionChanged(PropertiesDialog.java:890)
	at org.openstreetmap.josm.gui.dialogs.properties.PropertiesDialog.updateSelection(PropertiesDialog.java:963)
	at org.openstreetmap.josm.gui.dialogs.properties.PropertiesDialog.processDatasetEvent(PropertiesDialog.java:975)
	at org.openstreetmap.josm.data.osm.event.DataSetListenerAdapter.otherDatasetChange(DataSetListenerAdapter.java:51)
	at org.openstreetmap.josm.data.osm.event.ChangesetIdChangedEvent.fire(ChangesetIdChangedEvent.java:24)
	at org.openstreetmap.josm.data.osm.event.DatasetEventManager.fireConsolidatedEvents(DatasetEventManager.java:117)
	at org.openstreetmap.josm.data.osm.event.DatasetEventManager.access$300(DatasetEventManager.java:27)
	at org.openstreetmap.josm.data.osm.event.DatasetEventManager$1.run(DatasetEventManager.java:187)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$000(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.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.pumpEventsForFilter(Unknown Source)
	at java.awt.Dialog$1.run(Unknown Source)
	at java.awt.Dialog$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Unknown Source)
	at java.awt.Component.show(Unknown Source)
	at java.awt.Component.setVisible(Unknown Source)
	at java.awt.Window.setVisible(Unknown Source)
	at java.awt.Dialog.setVisible(Unknown Source)
	at org.openstreetmap.josm.gui.progress.PleaseWaitProgressMonitor$3.run(PleaseWaitProgressMonitor.java:83)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$000(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.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)