(Fset_buffer_multibyte): Correctly recover a narrowed

region when a buffer is changed to unibyte.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/buffer.c b/src/buffer.c
index 09542fc43a6..c4c85cf8623 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2049,7 +2049,7 @@ but the contents viewed as characters do change.  */)
   Lisp_Object tail, markers;
   struct buffer *other;
   int undo_enabled_p = !EQ (current_buffer->undo_list, Qt);
-  int begv = BEGV, zv = ZV;
+  int begv, zv;
   int narrowed = (BEG != begv || Z != zv);
   int modified_p = !NILP (Fbuffer_modified_p (Qnil));
 
@@ -2068,6 +2068,11 @@ but the contents viewed as characters do change.  */)
   /* If the cached position is for this buffer, clear it out.  */
   clear_charpos_cache (current_buffer);
 
+  if (NILP (flag))
+    begv = BEGV_BYTE, zv = ZV_BYTE;
+  else
+    begv = BEGV, zv = ZV;
+
   if (narrowed)
     Fwiden ();