Explain an apparent bug reported by

[p5sagit/p5-mst-13.2.git] / mg.c

diff --git a/mg.c b/mg.c
index 9def37f..4fc2ffc 100644 (file)
--- a/mg.c
+++ b/mg.c
@@ -1506,7 +1506,7 @@ Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg)
        sv_insert(lsv, lvoff, lvlen, tmps, len);
        SvUTF8_on(lsv);
     }
-    else if (SvUTF8(lsv)) {
+    else if (lsv && SvUTF8(lsv)) {
        sv_pos_u2b(lsv, &lvoff, &lvlen);
        tmps = (char*)bytes_to_utf8((U8*)tmps, &len);
        sv_insert(lsv, lvoff, lvlen, tmps, len);
@@ -1911,10 +1911,8 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
        PL_multiline = (i != 0);
        break;
     case '/':
-       SvREFCNT_dec(PL_nrs);
-       PL_nrs = newSVsv(sv);
        SvREFCNT_dec(PL_rs);
-       PL_rs = SvREFCNT_inc(PL_nrs);
+       PL_rs = newSVsv(sv);
        break;
     case '\\':
        if (PL_ors_sv)