* re.c (rb_reg_quote): should always copy the quoting string.

  [ruby-core:16235]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15925 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 3 deletions

diff --git a/re.c b/re.c
index 3f115cd04b..f0776a1fe8 100644
--- a/re.c
+++ b/re.c
@@ -2759,11 +2759,11 @@ rb_reg_quote(VALUE str)
 	}
         s += clen;
     }
+    tmp = rb_str_new3(str);
     if (ascii_only) {
-        str = rb_str_new3(str);
-        rb_enc_associate(str, rb_usascii_encoding());
+        rb_enc_associate(tmp, rb_usascii_encoding());
     }
-    return str;
+    return tmp;
 
   meta_found:
     tmp = rb_str_new(0, RSTRING_LEN(str)*2);