Mass upload incomplete with option "Fill up one changeset and return to the Upload Dialog"

[GerdP]

What steps will reproduce the problem?

1. Have more than 10000 changed objects
2. Start Upload (either full or selected objects)
3. Select option "Fill up one changeset and return to the Upload Dialog" (see attached image)
4. Click "Upload changes"
5. Wait until 10.000 objects are uploaded and Upload Dialog is opened again
6. Change whatever you want or don't change any option and click "Upload changes" again

What is the expected result?

More objects are uploaded

What happens instead?

Nothing. Dialog is closed, nothing is uploaded, no error message is shown.

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

I've also checked this with tested version, similar problem. See also #23755 which is probably caused by the same error. If I got this right there is simply no code to react on the 2nd Upload dialog.
Console log:

2024-06-27 08:38:27.187 INFO: Changeset 0: r19127
2024-06-27 08:38:27.334 INFO: Message notifier inactive
2024-06-27 08:38:27.341 INFO: PUT https://master.apis.dev.openstreetmap.org/api/0.6/changeset/create (262 B) ...
2024-06-27 08:38:27.503 INFO: PUT https://master.apis.dev.openstreetmap.org/api/0.6/changeset/create -> HTTP/1.1 200 (70 ms; 6 B)
2024-06-27 08:38:27.503 INFO: OK
2024-06-27 08:38:27.677 INFO: POST https://master.apis.dev.openstreetmap.org/api/0.6/changeset/370539/upload (819 kB) ...
2024-06-27 08:38:33.952 INFO: POST https://master.apis.dev.openstreetmap.org/api/0.6/changeset/370539/upload -> HTTP/1.1 200 (2.0 s)
2024-06-27 08:38:33.953 INFO: OK
2024-06-27 08:38:34.254 INFO: PUT https://master.apis.dev.openstreetmap.org/api/0.6/changeset/370539/close (2 B) ...
2024-06-27 08:38:34.395 INFO: PUT https://master.apis.dev.openstreetmap.org/api/0.6/changeset/370539/close -> HTTP/1.1 200 (63 ms)
2024-06-27 08:38:34.396 INFO: OK
2024-06-27 08:38:34.504 INFO: Message notifier active (checks every 5 minutes)
2024-06-27 08:39:02.698 INFO: POST https://josm.openstreetmap.de/josmticket (2.71 kB) ...
2024-06-27 08:39:10.427 INFO: POST https://josm.openstreetmap.de/josmticket -> HTTP/1.1 200 (107 ms)

Revision:19127
Is-Local-Build:true
Build-Date:2024-06-27 08:35:18

Identification: JOSM/1.5 (19127 SVN en) Windows 10 64-Bit
OS Build number: Windows 10 Pro 22H2 (19045)
Memory Usage: 282 MB / 1888 MB (107 MB allocated, but free)
Java version: 21.0.2+13-LTS, Azul Systems, Inc., OpenJDK 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1920x1080x32bpp@60Hz (scaling 1.00×1.00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→32×32, 32×32→32×32
System property file.encoding: UTF-8
System property sun.jnu.encoding: Cp1252
Locale info: en_DE
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-Djpackage.app-version=1.5.19039, --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.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=%UserProfile%\AppData\Local\JOSM\JOSM HWConsole.exe]
Dataset consistency test: No problems found

Plugins:
+ utilsplugin2 (36241)

Last errors/warnings:
- 00000.489 W: extended font config - overriding 'filename.Malgun_Gothic=malgun.ttf' with 'MALGUN.TTF'
- 00000.491 W: extended font config - overriding 'filename.Myanmar_Text=mmrtext.ttf' with 'MMRTEXT.TTF'
- 00000.492 W: extended font config - overriding 'filename.Mongolian_Baiti=monbaiti.ttf' with 'MONBAITI.TTF'
- 00000.952 E: java.security.KeyStoreException: Windows-ROOT not found. Cause: java.security.NoSuchAlgorithmException: Windows-ROOT KeyStore not available

OSM API: https://master.apis.dev.openstreetmap.org/api

[GerdP]

Image created with tested version:

[GerdP]

Question is: Did this ever work?