Window with element history is focusing under Changeset manager

[anonymous]

What steps will reproduce the problem?

1. Open Changeset Manager and maximize it
2. Download changeset and content
3. Right click on element and "Show history"

What happens instead?

Window has been focused on main window, under Changeset Manager.
Must hide manager to see it.

There are also no easy way to download changeset, download element to see in JOSM, or open it in browser.

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2015-05-19 01:31:47
Last Changed Author: Don-vip
Revision: 8395
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2015-05-19 00:05:33 +0200 (Tue, 19 May 2015)
Last Changed Rev: 8395

Identification: JOSM/1.5 (8395 pl) Linux Ubuntu 14.04.2 LTS
Memory Usage: 392 MB / 869 MB (96 MB allocated, but free)
Java version: 1.7.0_79, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u79-2.5.5-0ubuntu0.14.04.2

Plugins:
- OpeningHoursEditor (30962)
- PicLayer (31114)
- Spline.drawing.tool (1000)
- editgpx (30892)
- geotools (31068)
- jts (31002)
- opendata (31116)
- photo_geotagging (30967)
- photoadjust (30964)
- reverter (31120)
- tag2link (31066)
- utilsplugin2 (31120)

Last errors/warnings:
- W: Could not get presets icon presets/gate.png
- E: Nie udało się zlokalizować obraz 'presets/gate.png'
- W: Could not get presets icon presets/gate.png
- E: java.net.SocketException: Sieć jest niedostępna
- E: org.openstreetmap.josm.io.OsmTransferException: Nie można połączyć się z serwerem OSM. Sprawdź swoje połączenie z Internetem.. Przyczyna: java.net.SocketException: Sieć jest niedostępna