Refactor: Add special deserializer for Geometry

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/Geometry.java

@@ -26,6 +26,8 @@ import de.hft.stuttgart.citydoctor2.utils.BoundingBoxCalculator;
 import de.hft.stuttgart.citydoctor2.utils.SerializablePair;
 import javafx.scene.paint.Color;
 
+import java.io.IOException;
+import java.io.ObjectInputStream;
 import java.io.Serial;
 import java.util.*;
 
@@ -344,6 +346,11 @@ public class Geometry extends GmlElement {
         return false;
     }
 
+    @Serial
+    private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
+        in.defaultReadObject();
+        updateVertices();
+    }
 
     public void clearMetaData() {
         if (vertices != null) {