id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
16492	Synchronization creates duplicates	peter_klofutar@…	team	"==== What steps will reproduce the problem?
1. Download an area in JOSM.
2. Create some objects (for ex. buildings).
3. Upload, save to an .osm file and close.
4. Reopen the file and synchronize (File -> Update Data).

==== What is the expected result?
No changes to the file.

==== What happens instead?
Previously created objects get duplicated.

==== 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: 2018-07-09 01:47:59 +0200 (Mon, 09 Jul 2018)
Build-Date:2018-07-08 23:50:14
Revision:14026
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14026 en) Windows 10 64-Bit
OS Build number: Windows 10 Pro 1803 (17134)
Memory Usage: 1072 MB / 1820 MB (458 MB allocated, but free)
Java version: 1.8.0_172-b11, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ CustomizePublicTransportStop (34206)
+ ImproveWay (1529701520)
+ apache-commons (34389)
+ buildings_tools (34212)
+ download_along (34389)
+ ejml (34389)
+ geotools (34125)
+ imagery_offset_db (34370)
+ jts (34206)
+ opendata (34389)
+ pt_assistant (34259)
+ public_transport (34265)
+ reverter (34271)
+ terracer (34109)
+ turnrestrictions (34129)
+ utilsplugin2 (34389)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/CampingForOverlanders&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/BuildingPreset&zip=1

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- W: No default layer selected, choosing first layer.
- W: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- E: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- W: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- E: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- W: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- E: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- W: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
- E: javax.script.ScriptException: ReferenceError: ""console"" is not defined in <eval> at line number 44. Cause: jdk.nashorn.internal.runtime.ECMAException: ReferenceError: ""console"" is not defined
}}}
"	defect	closed	normal		Core		worksforme	template_report