arrange polies: try connect to closest point when extension and projection both do not work

src/svgfill/src/arrange_polygons.cpp

@@ -2187,6 +2187,23 @@ extend_end_vertices_based_on_input_simple(
                             }
                         }
 
+                        if (closest_point) {
+                            constructed_segments.push_front({M, *closest_point});
+                        } else {
+
+                            for (auto& poly : outer_perimiter) {
+                                for (auto it = poly.begin(); it != poly.end(); ++it) {
+                                    auto Pp = *it;
+                                    auto d = CGAL::squared_distance(Pp, M);
+                                    if (d < (max_projection_distance * max_projection_distance)) {
+                                        if (d < closest_distance) {
+                                            closest_distance = d;
+                                            closest_point = Pp;
+                                        }
+                                    }
+                                }
+                            }
+
                             if (closest_point) {
                                 constructed_segments.push_front({M, *closest_point});
                             } else {
@@ -2197,6 +2214,7 @@ extend_end_vertices_based_on_input_simple(
                 }
             }
         }
+    }
 
     return constructed_segments;
 }