error message when closing parent relation

[az09]

First I opened the standard edit relation dialog. In the "Parent Relations" tab press "Reload", select loaded master_route, then click to "Edit". After this actions opens the second edit relation dialog. I return to the first dialog and started changing its member list... Because my screen is not so large, I want to close the dialog with master_route relation. And here happens bug

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-06-24 01:49:51 +0200 (Fri, 24 Jun 2016)
Build-Date:2016-06-24 01:34:30
Revision:10473
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10473 en) Linux Ubuntu 14.04.4 LTS
Memory Usage: 100 MB / 494 MB (24 MB allocated, but free)
Java version: 1.7.0_101-b00, Oracle Corporation, OpenJDK Client VM
Java package: openjdk-7-jre:i386-7u101-2.6.6-0ubuntu0.14.04.1
WebStart package: icedtea-netx:i386-1.5.3-0ubuntu0.14.04.1
VM arguments: [-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: No problems found

Plugins:
- Mapillary (32158)
- PicLayer (32158)
- apache-commons (32158)
- apache-http (32158)
- graphview (32344)
- measurement (32324)

Map paint styles:
- http://www.openrailwaymap.org/styles/electrified.zip
- http://www.openrailwaymap.org/styles/josm-additional.zip
- http://www.openrailwaymap.org/styles/signals.zip
- http://www.openrailwaymap.org/styles/standard.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/Fixme&zip=1

Last errors/warnings:
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.mapillary.gui.MapillaryHistoryDialog$RedoAction@1efa9d4
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.mapillary.gui.MapillaryFilterDialog$UpdateAction@15a8d07
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.mapillary.gui.MapillaryFilterDialog$ResetAction@cdca5b
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.graphview.plugin.dialogs.GraphViewDialog$1@812bf7
- E: java.lang.IllegalArgumentException: Listener was not registered before: org.openstreetmap.josm.actions.ZoomToAction@1971ab2

java.lang.IllegalArgumentException: Listener was not registered before: org.openstreetmap.josm.actions.ZoomToAction@1971ab2
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayerChangeListener(LayerManager.java:345)
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayerChangeListener(LayerManager.java:333)
	at org.openstreetmap.josm.gui.widgets.OsmPrimitivesTable.unregisterListeners(OsmPrimitivesTable.java:105)
	at org.openstreetmap.josm.gui.dialogs.relation.MemberTable.unregisterListeners(MemberTable.java:142)
	at org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor.setVisible(GenericRelationEditor.java:758)
	at org.openstreetmap.josm.gui.dialogs.relation.actions.SavingAction.hideEditor(SavingAction.java:191)
	at org.openstreetmap.josm.gui.dialogs.relation.actions.CancelAction.actionPerformed(CancelAction.java:73)
	at org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor.cancel(GenericRelationEditor.java:327)
	at org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor$3.windowClosing(GenericRelationEditor.java:266)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:350)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.Window.processWindowEvent(Window.java:2051)
	at javax.swing.JDialog.processWindowEvent(JDialog.java:680)
	at java.awt.Window.processEvent(Window.java:2009)
	at java.awt.Component.dispatchEventImpl(Component.java:4872)
	at java.awt.Container.dispatchEventImpl(Container.java:2287)
	at java.awt.Window.dispatchEventImpl(Window.java:2719)
	at java.awt.Component.dispatchEvent(Component.java:4698)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:747)
	at java.awt.EventQueue.access$300(EventQueue.java:103)
	at java.awt.EventQueue$3.run(EventQueue.java:706)
	at java.awt.EventQueue$3.run(EventQueue.java:704)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.awt.EventQueue$4.run(EventQueue.java:720)
	at java.awt.EventQueue$4.run(EventQueue.java:718)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:717)
	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)

[stoecker]

Closed as duplicate of #13040.