Thanks, can reproduce. Did not know that join segments is that smart and creates multipolygons. Nice feature.
Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-03-18 02:36:30
Last Changed Author: Don-vip
Revision: 6910
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-03-18 00:57:31 +0100 (Tue, 18 Mar 2014)
Last Changed Rev: 6910
Identification: JOSM/1.5 (6910 en) Linux Debian GNU/Linux 7.4 (wheezy)
Memory Usage: 304 MB / 672 MB (174 MB allocated, but free)
Java version: 1.7.0_25, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u25-2.3.10-1~deb7u1
Program arguments: [buildingsegments.osm]
Dataset consistency test: No problems found
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