id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
18744	"""Join Overlapping Areas"" shows confusing dialogs when merging inner and outer ways of a multipolygon"	GerdP	team	"==== What steps will reproduce the problem?
1. Load attached sample 18744-sample.osm
2. select all ways and press Shift+J to ""join overlapping areas""

==== What is the expected result?
A notification that this is not supported, maybe ""Cannot join inner and outer ways of a multipolygon""
==== What happens instead?
Conflict dialog pops up, asking which ways should be kept. Depending on the selection the dialog pops up again, maybe followed by a third popup asking for confirmation that a new way can be deleted.
==== Please provide any additional information below. Attach a screenshot if possible.

{{{
Build-Date:2020-02-21 09:22:50
Revision:15887
Is-Local-Build:true

Identification: JOSM/1.5 (15887 SVN en) Windows 10 64-Bit
OS Build number: Windows 10 Home 1903 (18362)
Memory Usage: 841 MB / 1820 MB (153 MB allocated, but free)
Java version: 1.8.0_191-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1080
Maximum Screen Size: 1920x1080
VM arguments: [-agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:58005, -ea, -Dfile.encoding=UTF-8]
Program arguments: [--debug]

Plugins:
+ OpeningHoursEditor (35250)
+ PolygonCutOut (v0.7)
+ apache-commons (35092)
+ buildings_tools (35248)
+ continuosDownload (91)
+ ejml (35122)
+ geotools (35169)
+ jaxb (35092)
+ jts (35122)
+ merge-overlap (35248)
+ o5m (35248)
+ opendata (35330)
+ pbf (35248)
+ poly (35248)
+ reverter (35313)
+ undelete (35313)
+ utilsplugin2 (35248)

Last errors/warnings:
- W: 1 problems occurred during upload/save
}}}
"	defect	closed	normal	20.03	Core		fixed	template_report