Wrong total download size shown.

### What Happened?

While Sideloading "Setzer" from flathub, There seems to be a bug in the displayed download size.
It says: Downloading: 5.4 GB/4.2 GB (2.3MB/s).
The already downloaded filesize is bigger than the total size.
.
EDIT:
Seemed to be a different bug. I canceled the Download when it got to 6gb and tried again.
After a few 100 mb download, the flatpak was installed.

### Steps to Reproduce

1. Went to https://flathub.org/apps/details/org.cvfosammmm.Setzer
2. Clicked "Install" there and downloaded org.cvfosammmm.Setzer.flatpakref
3. Ran org.cvfosammmm.Setzer.flatpakref

### Expected Behavior

Already downloaded size should be expected not to exceed the total size of the Download.

### OS Version

6.x (Odin)

### Software Version

Latest release (I have run all updates)

### Log Output

_No response_

### Hardware Info

_No response_