One more fix for conceal patch.

runtime/doc/syntax.txt

@@ -4521,14 +4521,21 @@ italic etc regions) in another. The 'scrollbind' option is useful here.
 To set the current window to have the syntax "foo", separately from all other
 windows on the buffer: >
    :ownsyntax foo
+<						*w:current_syntax*
+This will set the "w:current_syntax" variable to "foo".  The value of
+"b:current_syntax" does not change.  This is implemented by saving and
+restoring "b:current_syntax", since the syntax files do set
+"b:current_syntax".  The value set by the syntax file is assigned to
+"w:current_syntax".
 
 Once a window has its own syntax, syntax commands executed from other windows
 on the same buffer (including :syntax clear) have no effect. Conversely, 
 syntax commands executed from that window do not effect other windows on the
 same buffer.
 
-A window with its own syntax reverts to normal behaviour when another buffer
+A window with its own syntax reverts to normal behavior when another buffer
-is loaded into that window.
+is loaded into that window or the file is reloaded.
+When splitting the window, the new window will use the original syntax.
 
 ==============================================================================
 16. Color xterms				*xterm-color* *color-xterm*

runtime/doc/todo.txt

@@ -1084,18 +1084,12 @@ restored. (Luc St-Louis)
 
 
 Vim 7.3:
-- Included conceal patch.
-    HL disappears in other window:
-	:sp
-	:ownsyntax perl
-	:e
-    Documentation update:
-	remove w:ownsyntax, automatically set w:current_syntax to the value of
-	b:current_syntax after loading a syntax file.  :ownsyntax only sets
-	w:current_syntax.
 - using NSIS 2.46: install on Windows 7 works, but no "Edit with Vim" menu.
    Use register_shell_extension()? (George Reilly, 2010 May 26)
    Ron's version: http://dev.ronware.org/p/vim/finfo?name=gvim.nsi
+- Update for crypt code to use salt. (Mohsin May 30)
+    Make the strengthen_key value 10000, equivalent to crypting 10 Kbyte of
+    text.
 - Also crypt the swap file, each block separately.  Change mf_write() and
     mf_read().
     - How to get b_p_key to these functions?  -> Store buf_T pointer in mfp.
@@ -1106,9 +1100,6 @@ Vim 7.3:
     - Fill the gaps in the block with random bytes, otherwise it's easy to
       check for correct password by finding NUL bytes.
     - Verify recovery works.
-- Update for crypt code to use salt. (Mohsin May 30)
-    Make the strengthen_key value configurable and store it in the header?
-    Or just use 10000, equivalent to crypting 10 Kbyte of text.
 - undofile: keep markers where the file was written/read, so that it's easy to
   go back to a saved version of the file:  ":earlier 1f" (f for file)?
   Also add ":earlier 1d" (d for day).

src/ex_cmds.c

@@ -3571,9 +3571,6 @@ do_ecmd(fnum, ffname, sfname, eap, newlnum, flags, oldwin)
 	    new_name = NULL;
 #endif
 	buf_freeall(curbuf, FALSE, FALSE);   /* free all things for buffer */
-#ifdef FEAT_SYN_HL
-	reset_synblock(curwin);	    /* remove any ownsyntax */
-#endif
 #ifdef FEAT_AUTOCMD
 	/* If autocommands deleted the buffer we were going to re-edit, give
 	 * up and jump to the end. */
@@ -3618,6 +3615,10 @@ do_ecmd(fnum, ffname, sfname, eap, newlnum, flags, oldwin)
      */
     check_arg_idx(curwin);
 
+#ifdef FEAT_SYN_HL
+    reset_synblock(curwin);	    /* remove any ownsyntax */
+#endif
+
 #ifdef FEAT_AUTOCMD
     if (!auto_buf)
 #endif

src/window.c

@@ -1176,7 +1176,6 @@ win_init(newp, oldp, flags)
 
     newp->w_buffer = oldp->w_buffer;
 #ifdef FEAT_SYN_HL
-    /* TODO: use reference count? */
     newp->w_s = &(oldp->w_buffer->b_s);
 #endif
     oldp->w_buffer->b_nwindows++;