Closed Unassigned: IsSimple returns true without checking [25307]

I found three Classes (Polygon, Multipolygon, LinearRing) in Dotspatial.Topology where IsSimple returns true without checking, whether the Geometry is simple.

In LinearRing.cs there is also the problem that IsClosed returns true, without checking, wheter the LinearRing is closed.
Comments: https://github.com/DotSpatial/DotSpatial/issues/656