Forum:Images with the same dimensions not updating

I don't want to file this as a bug if it's just me being impatient (I wait a big 5 minutes), but sometimes, reuploaded images are not changed when they are the same dimensions. In order to update it immediately, I must re-upload the same file. I am just wondering if this is only me, or if it also happens to anyone else. Yes, I hard refresh, and I even check on 2 different browsers: it's the same file. --D. (talk · contr) 21:38, September 30, 2010 (UTC)