Segfault when reloading a scene with 2D constraint

[Mike3D]

Segfault happens when calling b2World->DestroyJoint(joint_) in Constraint2D::ReleaseJoint()
And it only happens when other body has been set.
ReleaseJoint() is called when destroying the constraint.

Script to reproduce:

#include "Scripts/Utilities/Sample.as"

void Start()
{
    CreateScene();
    SubscribeToEvent("Update", "HandleUpdate");
}

void CreateScene()
{
    scene_ = Scene();
    scene_.CreateComponent("Octree");
    scene_.CreateComponent("PhysicsWorld2D");

    // Create camera
    cameraNode = Node();
    Camera@ camera = cameraNode.CreateComponent("Camera");
    camera.orthographic = true;
    camera.orthoSize = graphics.height * PIXEL_SIZE;
    renderer.viewports[0] = Viewport(scene_, camera);

    // Create a box
    Node@ box  = scene_.CreateChild("Box");
    RigidBody2D@ boxBody = box.CreateComponent("RigidBody2D");
    CollisionBox2D@ shape = box.CreateComponent("CollisionBox2D");

    // Create a ball
    Node@ ball  = scene_.CreateChild("Ball");
    RigidBody2D@ ballBody = ball.CreateComponent("RigidBody2D");
    CollisionCircle2D@ ballShape = ball.CreateComponent("CollisionCircle2D");

    // Create constraint
    ConstraintPulley2D@ constraintPulley = box.CreateComponent("ConstraintPulley2D"); // Apply constraint to box
    constraintPulley.otherBody = ball.GetComponent("RigidBody2D"); // Constrain ball to box
}

void HandleUpdate(StringHash eventType, VariantMap& eventData)
{
    if (input.keyPress[KEY_F5]) // Save scene
    {
        File saveFile(fileSystem.programDir + "Data/Scenes/Constraints.xml", FILE_WRITE);
        scene_.SaveXML(saveFile);
    }
    if (input.keyPress[KEY_F7])
    {
        File loadFile(fileSystem.programDir + "Data/Scenes/Constraints.xml", FILE_READ);
        scene_.LoadXML(loadFile);
    }
}

// Create XML patch instructions
String patchInstructions ="";

Save with F5, reload with F7

[Mike3D]

Many thanks 😃
2D constraints are not properly deserialized, but that's a different story. I'll check how it is done in 3D constraints.