From 4978b1831a24ff36fc8bea075526005cdf40e132 Mon Sep 17 00:00:00 2001
From: Dave Mitchell <davem@fdisolutions.com>
Date: Fri, 20 Oct 2006 10:06:57 +0000
Subject: [PATCH] zero length $1 took too long to detect utf8-ness

p4raw-id: //depot/perl@29059
---
 mg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mg.c b/mg.c
index b477386..3ab49c0 100644
--- a/mg.c
+++ b/mg.c
@@ -861,7 +861,7 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
 		    TAINT_NOT;
 		    sv_setpvn(sv, s, i);
 		    PL_tainted = oldtainted;
-		    if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i))
+		    if (RX_MATCH_UTF8(rx) && (!i || is_utf8_string((U8*)s, i)))
 			SvUTF8_on(sv);
 		    else
 			SvUTF8_off(sv);
-- 
2.7.4