Comment 56 for bug 1623666

Continuing #55:

Given the change with libimobiledevice between iOS 10.3 and iOS 11+,
I decided to take a look at shotwell.

The curious thing is that shotwell
displays correct thumbnails for all photos on the iphone. That is curious
because AIUI the jpegs generated by the iphone camera contain embedded
thumbnails using exif. But shotwell fails to import a single photo, even one
at a time.

For each photo the shotwell log contains a line like this:

IMG_0002.JPG
   error message: [-107] Error retrieving file object for
         /store_feedface/DCIM/100APPLE/IMG_0002.JPG: Unknown error

Yet it gets a thumbnail.

How does it get a thumbnail without getting the photo?