Minimizing JPEG images in place results in corrupted/0kB files

[bramus]

If you have Image Optimizer configured to not use a .min suffix nor to use a minified folder — i.e. to do an in-place optimization — it will yield 0kB JPEG files.

(PNG images it works fine)

The source image is not the culprit here, as when configuring Image Optimizer to use a .min suffix it works fine:

[antonreshetov]

Closed because it was fixed in #13