Do not reuse cached thumbnails on build
Do not reuse cached thumbnails on build

Feels just a tiny bit more safe to me.

philiph/middleman-simple-thumbnailer,noniq/middleman-simple-thumbnailer,kubenstein/middleman-simple-thumbnailer,noniq/middleman-simple-thumbnailer,philiph/middleman-simple-thumbnailer,kubenstein/middleman-simple-thumbnailer