Added some comments about things to be fixed in the future

src/Mod/PartDesign/App/FeatureSketchBased.cpp

@@ -628,8 +628,10 @@ void SketchBased::generatePrism(TopoDS_Shape& prism,
 const bool SketchBased::checkWireInsideFace(const TopoDS_Wire& wire, const TopoDS_Face& face,
                                             const gp_Dir& dir) {
     // Project wire onto the face (face, not surface! So limits of face apply)
-    // FIXME: For a user-selected upToFace, sometimes this returns a non-closed wire for no apparent reason
-    // Check again after introduction of "robust" reference for upToFace
+    // FIXME: The results of BRepProj_Projection do not seem to be very stable. Sometimes they return no result
+    // even in the simplest projection case.
+    // FIXME: Checking for Closed() is wrong because this has nothing to do with the wire itself being closed
+    // But ShapeAnalysis_Wire::CheckClosed() doesn't give correct results either.
     BRepProj_Projection proj(wire, face, dir);
     return (proj.More() && proj.Current().Closed());
 }