Comment 1 for bug 1463559

It appears the file saved by UDM under ~/.cache/com.ubuntu.gallery/HubIncoming/ has the expected checksum, but when copied over to ~/Pictures, its checksum changes. A wild guess is that gallery-app modifies the file (maybe the exif metadata).

Note that when saving the same image three times in a row (and renaming the file in between each download), I’m getting three different checksums, which suggests that the contents of the file change in a different way (maybe the exif timestamp?).