Mike,
see the "fix" here
https://github.com/openjump-gis/cadtools-extension/commit/cb8857f2c053a002c8f084ab25d27edb33975e50
essentially it calls `FeatureDrawingUtil.createAddCommand()` which in turn
checks `geometry.isValid()` if creation of of invalid geometries is configured
forbidden
thx Mike,
i'll cc the list.
very well, i'll put the fixup of the wkt geometries from
https://github.com/openjump-gis/vertex-symbols/tree/main/src/main/resources/VertexImages
into more capable hands then mine. if s.b. sends me a zip with fixed wkts, i
will gladly commit those. Pepe, Jukka,
