Specifically in Safari 9.0: when I save an image via right clicking and selecting Save image as... I can specify the downloads folder and the kMDItemWhereFrom data is saved just fine, as revealed both by selecting the file in Finder and using cmdI and also via Terminal using
However, when I save an image via right clicking Save Image to "Downloads" the kMDItemWhereFrom data isn't saved. This occurs even when selecting exactly the same image. I'm pretty sure it did work back in previous versions of Safari, as I have older images saved that have this data.
I can't find any documentation referring to this change. Is there a way to restore the functionality? It was far more convenient before.