id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
23735	[Patch] Combine ways refused	nkamapper	GerdP	"==== What steps will reproduce the problem?
1. Download ways with Overpass, for example:

{{{
[out:xml][timeout:90];
{{geocodeArea:Arendal}}->.searchArea;
(
  nwr[""waterway""](area.searchArea);
);
(._;>;<;);
out meta;
}}}

2. Select two ways which are connected with a common node, for example at node 4157936458.
 
3. Apply Tools -> Combine ways.

==== What is the expected result?
The two ways should be concatenated into one way.

==== What happens instead?
Since 19096 I get this error message: ""Combine ways refused (A shared node may have additional referrers).""

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

During imports I am doing hundreds of these combinations, so this slows down editing considerably. Parents were already downloaded with the recurse up operator above, so the refusal should not be needed.

{{{
Revision:19096
Build-Date:2024-06-04 11:25:36

Identification: JOSM/1.5 (19096 en_GB) Mac OS X 12.7.4
OS Build number: macOS 12.7.4 (21H1123)
Memory Usage: 1684 MB / 4096 MB (349 MB allocated, but free)
Java version: 21.0.3+9-LTS, Azul Systems, Inc., OpenJDK 64-Bit Server VM
Look and Feel: com.apple.laf.AquaLookAndFeel
Screen: Display 69733568 1440×900 (scaling 2.00×2.00)
Maximum Screen Size: 1440×900
Best cursor sizes: 16×16→16×16, 32×32→32×32
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: en_GB
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-Djpackage.app-version=19096, --add-modules=java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web, --add-exports=java.base/sun.security.action=ALL-UNNAMED, --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED, --add-opens=java.base/java.lang=ALL-UNNAMED, --add-opens=java.base/java.nio=ALL-UNNAMED, --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED, --add-opens=java.base/jdk.internal.ref=ALL-UNNAMED, --add-opens=java.desktop/javax.imageio.spi=ALL-UNNAMED, --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED, --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED, -Djpackage.app-path=/Applications/JOSM.app/Contents/MacOS/JOSM]
Dataset consistency test: No problems found

Plugins:
+ PicLayer (1.0.3)
+ RelationDissolve (0.2.0)
+ apache-commons (36273)
+ apache-http (36273)
+ changeset-viewer (0.0.7)
+ conflation (0.6.11)
+ ejml (36176)
+ ext_tools (36126)
+ geotools (36273)
+ imagery-xml-bounds (36196)
+ jackson (36273)
+ jaxb (36118)
+ jna (36273)
+ jts (36004)
+ log4j (36273)
+ opendata (36256)
+ pdfimport (36205)
+ reverter (36256)
+ scripting (v0.3.1)
+ todo (137)
+ utilsplugin2 (36241)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/LaneAttributes&zip=1
+ https://raw.githubusercontent.com/OpenNauticalChart/josm/master/INT-1-preset.xml

Map paint styles:
+ https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
- https://raw.githubusercontent.com/OpenSeaMap/josm/master/CEVNI_MapCSS.mapcss
- https://raw.githubusercontent.com/OpenSeaMap/josm/master/INT1_Seamark.mapcss
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransport&zip=1
}}}
"	defect	closed	normal	24.06	Core	tested	fixed	template_report combine way parent