[josm_reverter] fix #josm9162 - another problem with reverter

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30008 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_building_tools] update to JOSM 6309

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@30010 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4