Double encoded spaces when viewing wikipedia article link

[Claudius]

What steps will reproduce the problem?

1. Load object ​https://www.openstreetmap.org/way/168347114
2. In the tag list of the object right-click on the wikipedia tag entry (which should show the value "de:Wohnhausgruppe Herderstraße") and select "View Wikipedia article"

What is the expected result?

Wikipedia URL ​https://de.wikipedia.org/wiki/Wohnhausgruppe%20Herderstra%C3%9Fe to be opened

What happens instead?

Invalid wikipedia URL ​https://de.wikipedia.org/wiki/Wohnhausgruppe%2520Herderstra%C3%9Fe is opened, because the percent character of the %20 space encoding is encoded once more

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: 2020-05-24 22:20:58 +0200 (Sun, 24 May 2020)
Build-Date:2020-05-25 01:30:47
Revision:16498
Relative:URL: ^/trunk

Identification: JOSM/1.5 (16498 fa) Mac OS X 10.15.4
OS Build number: Mac OS X 10.15.4 (19E287)
Memory Usage: 854 MB / 1820 MB (614 MB allocated, but free)
Java version: 1.8.0_251-b08, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: Display 69734208 1440x900
Maximum Screen Size: 1440x900
VM arguments: [-Djava.security.policy=file:<java.home>/lib/security/javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>/bin, -Djava.security.manager, -Djnlpx.origFilenameArg=${HOME}/Downloads/josm-latest.jnlp, -Djnlpx.remove=false, -Dsun.awt.warmup=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.heapsize=NULL,2048m, -Dmacosx.jnlpx.dock.name=JOSM (development version), -Dmacosx.jnlpx.dock.icon=${HOME}/Library/Application Support/Oracle/Java/Deployment/cache/6.0/25/4c122699-7b178335.icns, -Djnlpx.jvm="<java.home>/bin/java"]
Dataset consistency test: No problems found

Plugins:
+ ColorPlugin (1537115529)
+ Mapillary (1.5.23)
+ OpeningHoursEditor (35414)
+ apache-commons (35362)
+ apache-http (35092)
+ buildings_tools (35405)
+ indoorhelper (35405)
+ javafx-osx (35375)
+ jna (35092)
+ pt_assistant (2.1.10-79-gb14a159)
+ reverter (35409)
+ tageditor (35258)
+ turnlanes (35405)
+ turnlanes-tagging (283)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/TurnLanes&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/OneClick&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/PublicTransportOneClick&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/OpenPisteMap&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Power_Mapping_Utility_Simple&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Healthcare&zip=1

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Fixme&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/HiDPISupport&zip=1
+ https://github.com/osmlab/appledata/archive/josm_paint_inline_validation.zip
+ https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransport&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/Maxspeed&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/MapWithAI&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/ParkingLanes&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/TigerReviewedNo&zip=1
+ <josm.userdata>/styles/sit.mapcss
- <josm.userdata>/styles/sit.mapcss

Validator rules:
+ https://josm.openstreetmap.de/josmfile?page=Rules/OSMLint&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/KeepRight&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/QAToolInspiredValidations&zip=1

[Klumbumbus]

It works fine for me. Console:

2020-05-25 15:25:31.557 INFORMATION: Öffne URL: https://de.wikipedia.org/wiki/Wohnhausgruppe%20Herderstraße

[Claudius]

Doesn't reproduce on Windows 10, but on Mac OS X using Safari, Chrome or Firefox as the system's default browser

[skyper]

Seems to be a MacOS X problem. Can not reproduce on Linux:

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-05-24 22:20:58 +0200 (Sun, 24 May 2020)
Revision:16498
Build-Date:2020-05-25 01:30:47
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (16498 en) Linux Debian GNU/Linux 10 (buster)
Java version: 11.0.7+10-post-Debian-3deb10u1, Debian, OpenJDK 64-Bit Server VM

[Stereo]

I can indeed reproduce this on a current JOSM on macOS, Java 14.

[simon04]

In 16774/josm:

fix #19293 - Tag2link/wikipedia: replace space with underscore

[simon04]

Ticket #19447 has been marked as a duplicate of this ticket.

[stoecker]

See #19771, seems not fixed.