[Sticker] Important issue for sticker and save state behaviors

[pippomacchiaarancione-bot]

Is there an existing issue for this?

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Enter the name of the extension

Sticker/Save-state

Describe the bug of the extension

When i save the state of an object with sticker behavior in the device's memory and i reload the scene that i saved the sticker loses his parent object

Steps to reproduce

1. open an empty scene
2. create an object with Sticker and save state behaviors
3. create another object with only the save state behavior
4. in the events link the sticker behavior obj to the other
5. also in the events use the save state behavior to set buttons for save/load scene in local memory
6. add a button to eliminate the obj in scene
7. when u load the preview, delete objs and try to reload them they will have lost the "link" property of the sticker behavior

GDevelop platform

Desktop

GDevelop version

5.6.257

Platform info

Details

OS (e.g. Windows, Linux, macOS, Android, iOS)

OS Version (e.g. Windows 10, macOS 10.15)

Browser(For Web) (e.g. Chrome, Firefox, Safari)

Device(For Mobile) (e.g. iPhone 12, Samsung Galaxy S21)

Additional context

No response