Fix display of before- and after-strings at invisible text

* src/xdisp.c (next_overlay_string): Don't raise the
ignore_overlay_strings_at_pos_p flag if the iterator is already
set to continue at a buffer position different from the one
where the overlay strings we just processed were loaded.  (Bug#25856)

1 files changed, 8 insertions, 3 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 91eef0ec475..cec649f590d 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -5557,9 +5557,14 @@ next_overlay_string (struct it *it)
 
       /* Since we've exhausted overlay strings at this buffer
 	 position, set the flag to ignore overlays until we move to
-	 another position.  The flag is reset in
-	 next_element_from_buffer.  */
-      it->ignore_overlay_strings_at_pos_p = true;
+	 another position.  (The flag will be reset in
+	 next_element_from_buffer.)  But don't do that if the overlay
+	 strings were loaded at position other than the current one,
+	 which could happen if we called pop_it above, or if the
+	 overlay strings were loaded by handle_invisible_prop at the
+	 beginning of invisible text.  */
+      if (it->overlay_strings_charpos == IT_CHARPOS (*it))
+	it->ignore_overlay_strings_at_pos_p = true;
 
       /* If we're at the end of the buffer, record that we have
 	 processed the overlay strings there already, so that