List of steps to reproduce (step by step, including full links if applicable):
- Go to https://upload.wikimedia.org/wikipedia/commons/thumb/1/15/NRCSAK97002_-_Alaska_%28134%29%28NRCS_Photo_Gallery%29.jpg/120px-NRCSAK97002_-_Alaska_%28134%29%28NRCS_Photo_Gallery%29.jpg
- Compare it to https://commons.wikimedia.org/wiki/File:NRCSAK97002_-_Alaska_(134)(NRCS_Photo_Gallery).jpg
What happens?:
The 120px thumbnail features horizontal bars/stripes.
What should have happened instead?:
Clear thumbnail.
120px thumbnail (striped):
220px thumbnail (fine):
