When rendering any given page there is currently no way to know what objects is used on the page. Knowing this opens easier debug options as you can provide a list with edit links to every object on the page, and it gives you a better overview of how the implementation is built up.
It would be low overhead to collect the object/version ids every time on of the visualization methods run
This list could then be provided in a PHP API as well as a fetch function. If the fetch function / API is used before every node is rendered, then only those rendered up-to that point should be included.
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