[QGIS-trac] [Quantum GIS] #2546: Singleparts to multipart makes non valid geometries

[Quantum GIS]

#2546: Singleparts to multipart makes non valid geometries
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   Reporter:  dr                                |              Owner:  borysiasty   
       Type:  enhancement                       |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.5.0
  Component:  Python plugins and bindings       |            Version:  HEAD         
   Keywords:                                    |   Platform_version:               
   Platform:  All                               |           Must_fix:  No           
Status_info:  0                                 |  
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 There is layer with valid geometries. When I try to convert single
 features of this layer to multifeatures with "Singleparts to multipart"
 tool of fTools, I get non valid multipolygon. Is it possible to get non
 valid multipolygon from valid polygons? In such case I guess that QGIS
 should inform the users about this.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/2546>
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