Joining of overlapping polygons results in multipolygon

[tumsi]

What steps will reproduce the problem?

1) Draw two or more overlapping polygons (they do not need to share any nodes but it does not make any difference) and select them
2) Use tool "Join overlapping Areas"

What is the expected result?

As in former versions: The polygons are joined according to an OR-function. This means: every part of the polygons, which is overlapping with the others or only belongs to one of both, goes to the merged polygon. If there are areas enclosed by and covered by neither, the new polygon is turned into the outer part of an multipolygon.

What happens instead?

Now also two simple overlapping polygons are converted into multipolygons like a XOR-function.

Version

Changes that leads to this defect, must have took part between version 6891 and 7000.

[skyper]

Can not reproduce.

Would you please add more information like status report and an example file. There might be also a preference setting, so please, try it with en empty/new JOSM directory.

Thanks

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-07-16 01:35:15
Last Changed Author: Don-vip
Revision: 7313
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-07-16 00:46:30 +0200 (Wed, 16 Jul 2014)
Last Changed Rev: 7313

Identification: JOSM/1.5 (7313 en) Linux Debian GNU/Linux 7.6 (wheezy)
Memory Usage: 665 MB / 882 MB (143 MB allocated, but free)
Java version: 1.7.0_55, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u55-2.4.7-1~deb7u1
Dataset consistency test: No problems found

Plugin: OpeningHoursEditor (30519)
Plugin: conflation (0.1.7)
Plugin: imagery-xml-bounds (30495)
Plugin: jts (30416)
Plugin: mirrored_download (30495)
Plugin: notes (v0.9.2)
Plugin: photoadjust (30428)
Plugin: reverter (30521)
Plugin: terracer (30416)
Plugin: todo (29154)
Plugin: undelete (30416)
Plugin: utilsplugin2 (30460)
Plugin: wikipedia (30449)

[Don-vip]

Closed as duplicate of #9951.
Replying to tumsi:

Changes that leads to this defect, must have took part between version 6891 and 7000.

I assume you're using version 7000? We have released two stable versions since, and fixed many bugs. This one looks like an exact duplicate of #9951, fixed 3 months ago. Please use latest version before submitting a bug.