Fix order of sorted overlays returned by 'overlays-at'

* src/buffer.c (Foverlays_at): If SORTED is non-nil, reverse the
list of results, to have their order as per the documentation.
(Bug#28390)

* etc/NEWS: Mention the change in the behavior of overlays-at.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/buffer.c b/src/buffer.c
index bc28ac7d1aa..76670b89545 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4179,6 +4179,12 @@ If SORTED is non-nil, then sort them by decreasing priority.  */)
   /* Make a list of them all.  */
   result = Flist (noverlays, overlay_vec);
 
+  /* The doc string says the list should be in decreasing order of
+     priority, so we reverse the list, because sort_overlays sorts in
+     the increasing order of priority.  */
+  if (!NILP (sorted))
+    result = Fnreverse (result);
+
   xfree (overlay_vec);
   return result;
 }