Ah yes, I suppose that would be helpful. I am running Tiki 18.1. I haven't uploaded images in a while. I think the last time I did was in version 17. The uploads are all new files. In the upload screen (I drag and drop the file to upload) it shows the thumbnail with the correct orientation. When I assign the image to a page the thumbnail and full image are rotated.
Register at tiki.org and you'll be able to use the account at any *.tiki.org site, thanks to the InterTiki feature. A valid email address is required to receive site notifications and occasional newsletters. You can opt out of these items at any time.