Give zoom-to the first on right click of validator groups and subgroups

[mkoniecz]

What steps will reproduce the problem?

Currently at least my process for fixing validator issues is like this

0. Download area
1. Run validator
2. Get errors
3. Expand errors/warning group
4. Expand specific error/warning
5. Use right-click and select zoom to
6. Fix problem
7. Upload
8. Go back to 1.

What is the expected result?

I can skip point 4.

What happens instead?

I must expand group, including ones with just single reported issue.

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

It is especially irritating with "Duplicate house numbers" subgroups.

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-10-28 22:27:31 +0100 (Sun, 28 Oct 2018)
Build-Date:2018-10-28 21:33:32
Revision:14382
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14382 en) Linux Ubuntu 16.04.5 LTS
Memory Usage: 949 MB / 949 MB (473 MB allocated, but free)
Java version: 1.8.0_191-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ OpeningHoursEditor (34535)
+ buildings_tools (34572)
+ continuosDownload (82)
+ imagery_offset_db (34641)
+ measurement (34529)
+ reverter (34552)
+ todo (30306)

Last errors/warnings:
- W: java.net.SocketTimeoutException: Read timed out
- W: Already here java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out