shortcut added to toolbar is greyed-out on restart

[j25879@…]

What steps will reproduce the problem?

1. add menu-item (for an EasyPresets preset) shortcut to toolbar
2. quit JOSM
3. start JOSM

What is the expected result?

shortcut usable

What happens instead?

Shortcut is greyed-out, and not active

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

Workaround is to edit the shortcut (r-click, Edit, OK) - shortcut gadget is then coloured, and usable.

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-12-28 22:03:23 +0100 (Mon, 28 Dec 2020)
Build-Date:2020-12-30 02:30:55
Revision:17428
Relative:URL: ^/trunk

Identification: JOSM/1.5 (17428 en) Linux Fedora 32 (Thirty Two)
Memory Usage: 906 MB / 1820 MB (461 MB allocated, but free)
Java version: 1.8.0_282-b08, Red Hat, Inc., OpenJDK 64-Bit Server VM
Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel
Screen: :0.0 1920×1080 (scaling 1.00×1.00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→16×16, 32×32→32×32
Desktop environment: XFCE
Java package: java-1.8.0-openjdk:x86_64-1.8.0.282.b08
WebStart package: icedtea-web:x86_64-2.0.0
Environment variable LANG: en_US.utf8
apache-commons-logging: apache-commons-logging:noarch-1.2
VM arguments: [-Dicedtea-web.bin.name=javaws, -Dicedtea-web.bin.location=/usr/libexec/icedtea-web/javaws]
Dataset consistency test: No problems found

Plugins:
+ EasyPresets (1612708244)
+ buildings_tools (35669)
+ jaxb (35543)
+ jogl (1.2.3)
+ log4j (35458)
+ markseen (14)
+ reverter (35688)
+ terracer (35640)
+ utilsplugin2 (35691)

Map paint styles:
+ https://josm.openstreetmap.de/josmfile?page=Styles/Enhanced_Lane_and_Road_Attributes&zip=1