normal maintenance. Nothing for Arjen ...

Docs/manual.texi:
  normal maintenance
sql/sql_update.cc:
  To reflect the changes Monty made with keyreads..

Docs/manual.texi

@@ -48162,6 +48162,8 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
 
 @itemize @bullet
 @item
+Made same changes in multi table updates as in multi table delete
+@item
 Fixed bug in multi table delete.
 @item
 Fixed bug in @code{SELECT CONCAT(argument-list) ... GROUP BY 1}.

sql/sql_update.cc

@@ -360,7 +360,7 @@ multi_update::multi_update(THD *thd_arg, TABLE_LIST *ut, List<Item> &fs,
   for (TABLE_LIST *dt=ut ; dt ; dt=dt->next,counter++)
   {
     TABLE *table=ut->table;
-    (void) ut->table->file->extra(HA_EXTRA_NO_KEYREAD);
+//    (void) ut->table->file->extra(HA_EXTRA_NO_KEYREAD);
     dt->table->used_keys=0;
     if (table->timestamp_field)
     {