Ristretto cannot rotate nor flip image and save changes

Submitted by Markus Kwaśnicki

Assigned to Stephan Arts

Link to original bug (#14733)

Description

Environment

My Linux distribution Manjaro 17.1.12 provides Ristretto 0.8.3 as optional image viewer. I like to managed my JPEG images taken with an arbitrary camera and some PNG images consisting of desktop screenshots.

Issue

While rotating or flipping an image Ristretto 0.8.3 seems to save the changes as new copy of the original image file. Unfortunately, reloading the manipulated image reveals that no changes got applied, at all. Also, the resulting MD5SUM of both original and manipulated image files has the same MD5 sum. In addition, it does not seem to matter whether the image file has the Exif orientation tag present.

Expectation

Ristretto should save all applied changes to the copied image file.

Version: 0.8.3