On MS Windows the following code will generate a buffer which displays
"aaa" and after that a lot of whitespace. If you scroll around a bit
Emacs will hang with 100% CPU usage. Typing `C-g' does not help.
(progn
(pop-to-buffer (get-buffer-create "*test*"))
(insert "aaa\nbbb\nccc\n")
(let ((ov (make-overlay 5 8)))
(overlay-put ov 'display "")))
On X11 the code works correctly and displays
aaa
ccc
--
Ralf
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