The autosave feature can lead to new drafts created upon each save. This happens when a new translation is created and the window is left open.

Steps to reproduce:

1. Install Ibexa DXP
2. Login to admin
3. Add a new language
4. Create a new translation of an object (in the root)
5. Open a new tab and open the dashboard in it
6. Wait 5 minutes
7. Refresh dashboard
8. Observe 4-5 new drafts appeared in the dashboard

Expected behaviour: Autosave would store and update a single draft, not creating a new one for each autosave.