X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/439f3c3e567692b6823923d569a06ac206d1c3be..00b6647651e4276ac5c47aa33e0fec6726469bc7:/src/editfns.c

diff --git a/src/editfns.c b/src/editfns.c
index 4c8336b8c8..aed884ebe1 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -5058,6 +5058,14 @@ Transposing beyond buffer boundaries is an error.  */)
 			 start2_byte, start2_byte + len2_byte);
       fix_start_end_in_overlays (start1, end2);
     }
+  else
+    {
+      /* The character positions of the markers remain intact, but we
+	 still need to update their byte positions, because the
+	 transposed regions might include multibyte sequences which
+	 make some original byte positions of the markers invalid.  */
+      adjust_markers_bytepos (start1, start1_byte, end2, end2_byte, 0);
+    }
 
   signal_after_change (start1, end2 - start1, end2 - start1);
   return Qnil;