Bug report #18913
Union tool gives completly unpredictive results
|Affected QGIS version:||3.0.2||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||fixed/implemented|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||26745|
I've attached 2 shapefiles that illustrate the issue. The result of the union gives 79 features and lot of them are overlayed. SAGA union works correctly, it gives 1495 not overlayed features and the attributes data are correctly affected to each new features.
I haven't test it on qgis 2.18 but as I remember I never encounter this kind of issue with union tool on previous version.