Make Fadd_face_text_property even less destructive

* src/textprop.c (Fadd_face_text_property): We need to be
non-destructive in buffers, too, because face properties may have
been added with `put-text-property' as a list that's been reused.

diff --git a/src/textprop.c b/src/textprop.c
index 13cd87ac473a7fc63c6d61fe1d3e918626b674f8..93d19754da59376647ea7879dc4402137fafb244 100644 (file)
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -1351,7 +1351,7 @@ into it.  */)
                         (NILP (append)
                          ? TEXT_PROPERTY_PREPEND
                          : TEXT_PROPERTY_APPEND),
-                        !STRINGP (object));
+                        false);
   return Qnil;
 }