Make C-u C-x = report on empty overlays at point.

* lisp/descr-text.el (describe-text-properties-1): Use overlays-in to
report on empty overlays.

Fixes: debbugs:3322

2 files changed, 6 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 97bad569955..d748214959d 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2012-08-20  Chong Yidong  <cyd@gnu.org>
+
+        * descr-text.el (describe-text-properties-1): Use overlays-in to
+        report on empty overlays (Bug#3322).
+
 2012-08-20  Glenn Morris  <rgm@gnu.org>
 
         * mail/rmailout.el (rmail-output-read-file-name):
diff --git a/lisp/descr-text.el b/lisp/descr-text.el
index 34d61b80d66..0c7f82d516e 100644
--- a/lisp/descr-text.el
+++ b/lisp/descr-text.el
@@ -140,7 +140,7 @@ otherwise."
 
 (defun describe-text-properties-1 (pos output-buffer)
   (let* ((properties (text-properties-at pos))
-         (overlays (overlays-at pos))
+         (overlays (overlays-in pos (1+ pos)))
          (wid-field (get-char-property pos 'field))
          (wid-button (get-char-property pos 'button))
          (wid-doc (get-char-property pos 'widget-doc))