Re: Unexpected hiding of identical images

[Richard M. Stallman]

    So I have added a yank-handler on images created by image-file that
    ensures that unique copies of the images are yanked.

Oh, do you mean that you yank several copies consecutively in the buffer?
Yes, I see how that would give bad results, for images,

As long as we always put an image property over a single character,
I think your fix is fully correct.  Is that the case?