Non-destructive localize

[Camwyn]

https://github.com/stellarwp/assets/blob/8b9776d2eddef9b84d699859f613c44ca4ec0148/src/Assets/Asset.php#L391C1-L391C1

Can we either use a filter or a merge function here so we can add to an object without having to completely overwrite it?

[Camwyn]

To be clear: the use-case I am thinking of is if we have two plugins(/themes/etc) say TEC and ECP. The parent plugin adds a new object to the localize and ECP wants to add new data (or overrides some old data) without having to recreate the entire object or do any juggling itself.

A slightly more concrete example might be a localized ticket object from ET that has a provider added via ET+ 🤔