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buffer.c: Don't involve the redisplay if the overlay has no proprties

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* src/buffer.c (drop_overlay, Fmove_overlay): Test overlay's
plist before calling `modify_overlay`.
This commit is contained in:
Stefan Monnier 2026-06-22 12:46:28 -04:00
parent dcdd76f89e
commit eba26e9489
1 changed files with 5 additions and 2 deletions
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7
src/buffer.c
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@ -980,7 +980,8 @@ drop_overlay (struct Lisp_Overlay *ov)
if (! ov->buffer)
return;
modify_overlay (ov->buffer, overlay_start (ov), overlay_end (ov));
if (!NILP (ov->plist))
modify_overlay (ov->buffer, overlay_start (ov), overlay_end (ov));
remove_buffer_overlay (ov->buffer, ov);
}
@ -3763,7 +3764,9 @@ buffer. */)
n_beg, n_end);
/* If the overlay has changed buffers, do a thorough redisplay. */
if (!BASE_EQ (buffer, obuffer))
if (NILP (OVERLAY_PLIST (overlay)))
; /* No props so the overlay doesn't affect the display. */
else if (!BASE_EQ (buffer, obuffer))
{
/* Redisplay where the overlay was. */
if (ob)