Problem
Let's say I publish a presentation with two slides A and B.
During the publish process, A and B are posted to the API.
The presentation is published.
Later on user delete slide B (only "in the frontend").
He/she publish is presentation again.
As "the frontend" doesn't know which slide has been deleted / only put/post slides, the deleted slides remains in the presentation.
Solution
Not sure how to solve it. I might need to fetch the list of slides, in the publish process, compares it with the slides processed and delete the delta?
To avoid error
For the time being, to avoid problems and error, published slides can't be deleted in the application anymore