newlines in notes should be shown as spaces

[mnalis]

What steps will reproduce the problem?

1. open notes window
2. navigate to part of map with multi-line notes (like the ones created by StreetComplete)
3. download notes
4. observe multiline text squashed together without spaces in notes window

What is the expected result?

The notes shown should have space or ";" or some other delimeter where there was newline, for example
"yamaha, 53 via StreetComplete 24.0 Attached Photos: ..."
or even better:
"yamaha, 53; via StreetComplete 24.0; Attached Photos: ..."

What happens instead?

newlines are completely ignored, so text looks like:
"yamaha, 53via StreetComplete 24.0Attached Photos: ..."

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

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-10-03 13:42:38 +0200 (Sat, 03 Oct 2020)
Revision:17084
Build-Date:2020-10-04 01:30:47
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (17084 en) Linux Debian GNU/Linux 10 (buster)
Memory Usage: 743 MB / 2048 MB (166 MB allocated, but free)
Java version: 11.0.8+10-post-Debian-1deb10u1, Debian, OpenJDK 64-Bit Server VM
Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel
Screen: :0.0 1920x1080 (scaling 1.0x1.0)
Maximum Screen Size: 1920x1080
Best cursor sizes: 16x16 -> 16x16, 32x32 -> 32x32
Desktop environment: ICEWM
VM arguments: [--patch-module=java.desktop=/usr/share/icedtea-web/netx.jar:, --add-reads=java.base=ALL-UNNAMED,java.desktop, --add-reads=java.desktop=ALL-UNNAMED,java.naming, --add-reads=java.naming=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/sun.awt=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/javax.jnlp=ALL-UNNAMED,java.desktop, --add-exports=java.base/com.sun.net.ssl.internal.ssl=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.net.www.protocol.jar=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.action=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.provider=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.util=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.validator=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.x509=ALL-UNNAMED,java.desktop, --add-exports=java.base/jdk.internal.util.jar=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.net.www.protocol.http=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/sun.awt.X11=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/sun.applet=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/sun.applet=ALL-UNNAMED,jdk.jsobject, --add-exports=java.naming/com.sun.jndi.toolkit.url=ALL-UNNAMED,java.desktop, -Dicedtea-web.bin.name=javaws, -Dicedtea-web.bin.location=/usr/share/icedtea-web/bin/javaws.sh, -Djava.security.manager, -Djava.security.policy=/etc/icedtea-web/javaws.policy]
Dataset consistency test: No problems found

Plugins:
+ DirectDownload (35552)
+ DirectUpload (35550)
+ FixAddresses (35343)
+ PicLayer (35405)
+ apache-commons (35524)
+ apache-http (35092)
+ buildings_tools (35570)
+ conflation (0.6.6)
+ geochat (35405)
+ imagery_offset_db (35405)
+ jna (35092)
+ jts (35122)
+ measurement (35405)
+ pt_assistant (2.1.10-80-g7d9bba3)
+ reverter (35556)
+ turnlanes (35405)
+ turnrestrictions (35515)
+ utilsplugin2 (35487)

Tagging presets:
+ https://<user.name>.com/prezentacije/OpenStreetMap/josm-preset.xml

Map paint styles:
- /tmp/elemstyles.mapcss
- https://www.dropbox.com/s/qo3ai47fpv241jf/Styles_Fixme_and_Notes.zip?raw=1
- https://raw.githubusercontent.com/OpenSeaMap/josm/master/CEVNI_MapCSS.mapcss
+ http://bezdomni.net/Styles_HighlightedCapesBays-style.mapcss 

Last errors/warnings:
- 02538.339 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/17/71304/46732
- 02538.413 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/16/35652/23366
- 02538.414 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/15/17826/11683
- 02538.414 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/14/8913/5841
- 02538.439 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/13/4456/2920
- 02762.644 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/18/142607/93463
- 02762.645 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/16/35651/23365
- 02762.645 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/15/17825/11682
- 02762.646 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/17/71303/46731
- 02762.704 E: Region [TMS_BLOCK_v2] : Failure getting from disk, key = osm-hr_ Zagreb 2018 Aerial imagery:https://tms.osm-hr.org/zagreb-2018/{zoom}/{x}/{-y}.png/14/8912/5841

[mnalis]

Notes window eats newlines, but in details newlines are shown OK.