Snapshot preview doesn't play well with dialogs that are taller than the viewport

[joonaspaakko]

I keep forgetting to fix this...

In the meantime: you can right-click > Open image in new tab to see it fully.

Note: first view is showing the whole image in a new tab and then I switch to the snapshot preview, in which I scroll as far up as possible, which is like half way up the image. Of course how much you can see depends on the height of the dialog and the viewport.