Nicholas says that SvREFCNT_dec should be sufficient here

(instead of marking the SV as mortal.)

diff --git a/hv.c b/hv.c
index 79d1944..3322848 100644 (file)
--- a/hv.c
+++ b/hv.c
@@ -1443,8 +1443,10 @@ Perl_hv_copy_hints_hv(pTHX_ HV *const ohv)
        hv_iterinit(ohv);
        while ((entry = hv_iternext_flags(ohv, 0))) {
            SV *const sv = newSVsv(HeVAL(entry));
+           SV *heksv = newSVhek(HeKEY_hek(entry));
            sv_magic(sv, NULL, PERL_MAGIC_hintselem,
-                    (char *)sv_2mortal(newSVhek (HeKEY_hek(entry))), HEf_SVKEY);
+                    (char *)heksv, HEf_SVKEY);
+           SvREFCNT_dec(heksv);
            (void)hv_store_flags(hv, HeKEY(entry), HeKLEN(entry),
                                 sv, HeHASH(entry), HeKFLAGS(entry));
        }