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x-display-screens treats multiple screens as a single display, which makes it impossible to programmatically size a frame relative to it's current screen.
This also affects x-display-list and x-display-(mm | pixel)-(width | height)
x-display-(mm | pixel)-(width | height)
Could you please report this issue to Mr. Yamamoto email@example.com by email? He is the developer of emacs mac port.
This is not an official repo. Sorry!
Close this error, this is not a bug.