id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
18268	IllegalStateException: Missing merge target when using reverter plugin	austinzhu666@…	austinzhu666@…	"==== What steps will reproduce the problem?
1. Open JOSM and use reverter plugin
2. Typing the id of changeset and start to download objects
3. At the moment when download is about to finish, crash reported

==== What is the expected result?

==== What happens instead?

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

{{{
URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-08-26 08:55:27 +0200 (Mon, 26 Aug 2019)
Build-Date:2019-08-26 06:57:10
Revision:15322
Relative:URL: ^/trunk

Identification: JOSM/1.5 (15322 en) Windows 10 64-Bit
OS Build number: Windows 10 Pro 1903 (18362)
Memory Usage: 785 MB / 1820 MB (623 MB allocated, but free)
Java version: 1.8.0_231-b11, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 2256x1504
Maximum Screen Size: 2256x1504
Dataset consistency test: No problems found

Plugins:
+ FastDraw (34977)
+ PicLayer (35104)
+ buildings_tools (35171)
+ changeset-viewer (22)
+ ext_tools (34988)
+ pbf (35033)
+ reverter (35084)
+ splinex (34908)
+ undelete (34977)
+ utilsplugin2 (35177)

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- E: Handled by bug report queue: java.lang.IllegalStateException: Missing merge target for node 5209470864


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (17) of main
java.lang.IllegalStateException: Missing merge target for node 5209470864
	at reverter.DataSetCommandMerger.getMergeTarget(DataSetCommandMerger.java:64)
	at reverter.DataSetCommandMerger.mergeNode(DataSetCommandMerger.java:83)
	at reverter.DataSetCommandMerger.merge(DataSetCommandMerger.java:179)
	at reverter.DataSetCommandMerger.<init>(DataSetCommandMerger.java:48)
	at reverter.ChangesetReverter.getCommands(ChangesetReverter.java:380)
	at reverter.RevertChangesetTask.revertChangeset(RevertChangesetTask.java:157)
	at reverter.RevertChangesetTask.realRun(RevertChangesetTask.java:89)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:94)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:142)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
}}}
"	defect	closed	normal		Plugin reverter	latest	duplicate	template_report; plugin