We have a page where we have nested multivalue and composite fields multiple times in the property dialog.
I will add the configuration as an attachement extralinks_config.

These are the steps where i get the issue:

• I switch my page language to an other that it not the primary language.
• I open the edit dialog for the page
• switch to an other language and then switch back to the previous one.
• edit a value in the composite field
• click save changes.

Now the changes are not saved. This issue only occurs when I swich languages. if I edit and save the data does get saved.