Start screen says "Strange version - You should update"

[GerdP]

What steps will reproduce the problem?

1. Compile latest version (r15001 as of now) from svn sources
2. Start JOSM

What is the expected result?

No "you should update" text

What happens instead?

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

Build-Date:2019-04-20 09:30:25
Revision:15001
Is-Local-Build:true

Identification: JOSM/1.5 (15001 SVN en) Windows 10 64-Bit
OS Build number: Windows 10 Home 1803 (17134)
Memory Usage: 725 MB / 1753 MB (570 MB allocated, but free)
Java version: 1.8.0_191-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1080
Maximum Screen Size: 1920x1080
VM arguments: [-agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:53066, -ea, -Dfile.encoding=UTF-8]
Program arguments: [--debug]

Plugins:
+ OpeningHoursEditor (34977)
+ apache-commons (34908)
+ buildings_tools (34977)
+ continuosDownload (82)
+ ejml (34908)
+ geotools (34908)
+ jaxb (34908)
+ jts (34908)
+ o5m (34908)
+ opendata (34977)
+ pbf (34908)
+ poly (34966)
+ reverter (34977)
+ undelete (34977)
+ utilsplugin2 (34977)

Validator rules:
+ c:\josm\core\data\validator\geometry.mapcss

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- W: Region [TMS_BLOCK_v2] Resetting cache