visible=false attribute is lost when an object is merged into another layer

[Adrian]

What steps will reproduce the problem?

1. Create two layers.
2. Undelete node 427688517 into one of the layers.
3. Display Advanced info for the node and see the attribute deleted-on-server. This corresponds to visible=false in OSM XML.
4. With the node still selected, use Merge selection to merge the node into the other layer.
5. Activate the other layer and display Advanced info for the merged node.

What is the expected result?

The node still has the attribute deleted-on-server.

What happens instead?

The node does not have the attribute deleted-on-server. This corresponds to visible=true in OSM XML.

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

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-03-13 01:17:21 +0100 (Sun, 13 Mar 2016)
Build-Date:2016-03-13 02:35:00
Revision:9979
Relative:URL: ^/trunk

Identification: JOSM/1.5 (9979 en) Mac OS X 10.9.5
Memory Usage: 601 MB / 3641 MB (223 MB allocated, but free)
Java version: 1.8.0_74-b02, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM

Plugins:
- ImportImagePlugin (31772)
- InfoMode (31772)
- PicLayer (31895)
- apache-commons (31895)
- cadastre-fr (32060)
- download_along (31772)
- editgpx (31772)
- ejml (31895)
- geotools (31895)
- imagery_offset_db (32046)
- jts (31772)
- log4j (31895)
- measurement (31895)
- opendata (32071)
- poly (31772)
- reverter (32005)
- turnrestrictions (31895)
- undelete (31895)
- utilsplugin2 (32099)
- waydownloader (31772)

[Don-vip]

Reproduced. The bug only occurs by using "Merge selection". Using "merge layer", the attribute is kept.

[Don-vip]

In 13070/josm:

fix #12641 - set visible status in OsmPrimitive.load()