Just like headline says, does autosaving of a document, ie whatever internal actions happen in order to recover files if ID crashes, does that fire any event-listener handlers like save or save-as?
Probably not, as there is no such thing as an explicit "Autosave" in InDesign. It seems changes get appended to the open file as soon as you turn the page, and probably as well after a decent interval of doing-nothing.
I'm only guessing.
Retrieving data ...