From 962d2a813067833151a5269899a50a865cd39e91 Mon Sep 17 00:00:00 2001
From: "jan.nijtmans" <nijtmans@users.sourceforge.net>
Date: Mon, 7 Feb 2022 15:35:09 +0000
Subject: Fix [1fe745559a]: 8.7, 9.0: Conditional jump or move depends on
 uninitialised value in Tcl_UniCharToUtf

---
 generic/tclUtil.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index e29afcc..01548ae 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -802,9 +802,11 @@ TclCopyAndCollapse(
 	char c = *src;
 
 	if (c == '\\') {
+	    char buf[4] = "";
 	    int numRead;
-	    int backslashCount = TclParseBackslash(src, count, &numRead, dst);
+	    int backslashCount = TclParseBackslash(src, count, &numRead, &buf);
 
+	    memcpy(dst, buf, backslashCount);
 	    dst += backslashCount;
 	    newCount += backslashCount;
 	    src += numRead;
-- 
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