Bug report #6784
Splitting a topologically correct polygon produces topologically incorrect parts
|Affected QGIS version:||master||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||worksforme|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||15933|
The split tool applied to a polygon layer with shared boundaries (topology correct) fails in producing new polygons with shared boundary (topology, again, incorrect). So much so, if after splitting a polygon into two I try to rejoin the two parts, they do not merge. As a workaround, I need to reshape the new boundary between the two parts and then merge them. Only then dangles that impeded merging (and that should not be there at all) become visible.