Crash while drawing line

[hosteddinner@…]

What steps will reproduce the problem?

Don't know if reproducable, but I have done:

1. Use Terracer to split a building into two parts
2. Changed to Line Tool and clicked near the joining point to start drawing
3. used the Shortcut for snap the angle (maybe to fast?)

What is the expected result?

What happens instead?

Crashed, with exception listed below.

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

Revision: 7643
Repository Root: http://josm.openstreetmap.de/svn
Relative URL: ^/trunk
Last Changed Author: Don-vip
Last Changed Date: 2014-10-21 21:19:16 +0200 (Tue, 21 Oct 2014)
Build-Date: 2014-10-21 19:23:06
URL: http://josm.openstreetmap.de/svn/trunk
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last Changed Rev: 7643

Identification: JOSM/1.5 (7643 de) Windows 8.1 64-Bit
Memory Usage: 699 MB / 1813 MB (234 MB allocated, but free)
Java version: 1.8.0_25, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Dataset consistency test: No problems found

Plugins:
- FixAddresses (30737)
- HouseNumberTaggingTool (30762)
- OpeningHoursEditor (30737)
- buildings_tools (30762)
- measurement (30737)
- mirrored_download (30762)
- notes (v0.9.4)
- terracer (30737)

Last errors/warnings:
- E: org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=-4084 version=0 MV lat=49.46399712926258,lon=7.730213203239738}
- E: org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=-4084 version=0 MV lat=49.46399712926258,lon=7.730213203239738}
- E: org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=-4084 version=0 MV lat=49.46399712926258,lon=7.730213203239738}
- E: org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=-4084 version=0 MV lat=49.46399712926258,lon=7.730213203239738}
- E: org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=-4084 version=0 MV lat=49.46399712926258,lon=7.730213203239738}

org.openstreetmap.josm.data.osm.DataIntegrityProblemException: Primitive must be part of the dataset: {Node id=-4084 version=0 MV lat=49.46399712926258,lon=7.730213203239738}
	at org.openstreetmap.josm.data.osm.OsmPrimitive.checkDataset(OsmPrimitive.java:334)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.getReferrers(OsmPrimitive.java:1030)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.getReferrers(OsmPrimitive.java:1051)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.getWayForNode(DrawAction.java:925)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.redrawIfRequired(DrawAction.java:180)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.addHighlighting(DrawAction.java:1081)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.mouseMoved(DrawAction.java:747)
	at java.awt.AWTEventMulticaster.mouseMoved(Unknown Source)
	at java.awt.Component.processMouseMotionEvent(Unknown Source)
	at javax.swing.JComponent.processMouseMotionEvent(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.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$400(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$1.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$1.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$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)

[skyper]

Closed as duplicate of #7170.