Well, one part of it is that Flatpak pulls data over the network, and sometimes data sent over a network doesn’t arrive in the exact same shape as when it left the original system, which results in that same data being sent in multiple copies - until one manages to arrive correctly.
I think this is actually very unlikely, flatpak is most likely using some TCP based protocol and TCP would take care of this transparently, flatpak wouldn’t know if any packets had to be retransmitted.
Well, one part of it is that Flatpak pulls data over the network, and sometimes data sent over a network doesn’t arrive in the exact same shape as when it left the original system, which results in that same data being sent in multiple copies - until one manages to arrive correctly.
This sounds the most likely, most apps just hide retries, flatpak shows exact data transfered.
I think this is actually very unlikely, flatpak is most likely using some TCP based protocol and TCP would take care of this transparently, flatpak wouldn’t know if any packets had to be retransmitted.
It uses HTTP, failures can happen at the HTTP layer.
Could also be that the HTTP server lied about the content length.