discourse/discourse — pull request #1394 by ZogStriP (2013-08-28 19:43:54+00:00)
Title: FIX: 404 on old thumbnails

The urls computed in the [`AddUrlToOptimizedImages`](https://github.com/discourse/discourse/blob/master/db/migrate/20130728172550_add_url_to_optimized_images.rb) migration were wrong.
They were missing the `_{width}x{height}` suffix.

This fixes it :fire: