Cannot merge two PointM shapefiles
Description
As mentioned here: https://github.com/MapWindow/MapWinGIS/issues/31
The two M point shapefiles cannot be merge. It throws an exception.
Testcode:
Environment
None
As mentioned here: https://github.com/MapWindow/MapWinGIS/issues/31
The two M point shapefiles cannot be merge. It throws an exception.
Testcode:
