Hang after using level auto-filter (thread AWT-EventQueue- uses 100% CPU)

[mikedld]

What steps will reproduce the problem?

1. Open the attached file
2. in the top-left view corner, switch to level [17] auto-filter and select level 3

What is the expected result?

The view is filtered to only show features from level 3.

What happens instead?

The view is seemingly filtered (not sure if partially) but the app becomes unresponsive right after, the thread "AWT-EventQueue-" is consuming 100% CPU. Waiting for several hours doesn't help, killing the process and recovering from the backup is the only way. Running with --debug doesn't yield any output after opening the file and before the hang.

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

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2025-08-31 14:19:57 +0200 (Sun, 31 Aug 2025)
Revision:19439
Build-Date:2025-09-02 01:30:58
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (19439 en) Linux Gentoo Linux
Memory Usage: 1024 MB / 4096 MB (586 MB allocated, but free)
Java version: 21.0.8+9-LTS, Eclipse Adoptium, OpenJDK 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.gtk.GTKLookAndFeel
Screen: :0.0 1920x1200x[Multi depth]@60Hz (scaling 1.00×1.00)
Maximum Screen Size: 1920×1200
Best cursor sizes: 16×16→16×16, 32×32→32×32
Environment variable LANG: es_ES.utf8
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: en_ES
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-Djava.library.path=/lib64, --module-path=${HOME}/.local/javafx-sdk-21.0.3/lib, --add-modules=javafx.base,javafx.controls,javafx.graphics,javafx.media,javafx.swing, -Dswing.aatext=TRUE, -Dawt.useSystemAAFontSettings=on]

Plugins:
+ MapRoulette (75)
+ Mapillary (1813)
+ MicrosoftStreetside (36438)
+ PicLayer (269)
+ PolygonCutOut (v0.7.3)
+ ShapeTools (e2b1469)
+ apache-commons (36438)
+ apache-http (36438)
+ buildings_tools (36438)
+ ejml (36438)
+ geotools (36438)
+ imagery_offset_db (36438)
+ importvec (36438)
+ indoorhelper (262)
+ jackson (36438)
+ javafx (36438)
+ jaxb (36438)
+ jna (36438)
+ jogl (1.2.3)
+ jts (36438)
+ log4j (36438)
+ lwjgl (36438)
+ lwjgl-unixoid (36438)
+ measurement (36438)
+ opendata (36440)
+ openqa (115)
+ reltoolbox (36438)
+ reverter (36447)
+ scripting (v0.3.5)
+ splinex (36438)
+ undelete (36438)
+ utilsplugin2 (36438)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/Addr2&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/BuildingPreset&zip=1

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Modified&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Maxspeed&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/ParkingLanes&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/SidewalksAndFootways&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/NewHighwayColors&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransportV2&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/Direction&zip=1
- https://github.com/bastik/mapcss-tools/raw/osm/mapnik2mapcss/osm-results/mapnik.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/HighwayAreas&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/CyclewaysStylingBNA&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/MaxspeedIcons&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
+ ${HOME}/Repo/osm/<user.name>-osm/pt/style.mapcss
- <josm.userdata>/plugins/indoorhelper/resources/sit.mapcss

Validator rules:
- https://josm.openstreetmap.de/josmfile?page=Rules/Portuguese-Errors-PT2&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Rules/Portuguese-Specific&zip=1