From bbc1b9debafc112bd192bf209e8e9e351506375f Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber@reactos.org>
Date: Sun, 2 Oct 2016 08:34:30 +0000
Subject: [PATCH] [RTL] - Only check for MBCS lead bytes in RtlIsTextUnicode if
 specifically requested CORE-12027 #resolve for real this time

svn path=/trunk/; revision=72887
---
 reactos/sdk/lib/rtl/unicode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/reactos/sdk/lib/rtl/unicode.c b/reactos/sdk/lib/rtl/unicode.c
index a6185b9c1dc..99da382ea6e 100644
--- a/reactos/sdk/lib/rtl/unicode.c
+++ b/reactos/sdk/lib/rtl/unicode.c
@@ -1367,7 +1367,7 @@ RtlIsTextUnicode(CONST VOID* buf, INT len, INT* pf)
             else
                 weight = 1;
 
-            if (flags & IS_TEXT_UNICODE_DBCS_LEADBYTE)
+            if (pf && (*pf & IS_TEXT_UNICODE_DBCS_LEADBYTE))
                 out_flags |= IS_TEXT_UNICODE_DBCS_LEADBYTE;
         }
     }