(Fconstrain_to_field): Check carefully for field boundaries if either

OLD_POS or NEW_POS has a non-nil field property, even if they're the same.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/editfns.c b/src/editfns.c
index 4f7a7c7db1f..57dbdaae0cc 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -612,7 +612,8 @@ Field boundaries are not noticed if `inhibit-field-text-motion' is non-nil.")
 
   if (NILP (Vinhibit_field_text_motion)
       && !EQ (new_pos, old_pos)
-      && !char_property_eq (Qfield, new_pos, old_pos)
+      && (!NILP (Fget_char_property (new_pos, Qfield, Qnil))
+          || !NILP (Fget_char_property (old_pos, Qfield, Qnil)))
       && (NILP (inhibit_capture_property)
           || NILP (Fget_char_property(old_pos, inhibit_capture_property, Qnil))))
     /* NEW_POS is not within the same field as OLD_POS; try to