add support for SAVEt_GVSV to Perl_ss_dup

fix for f83b46a0147ba6f476add85d17f61a7e7fb00f21, which added
the new SAVEt_GVSV, but forgot to amend the CX srack duplication code.

(Since that code is only used on win32, I'm applying it blind here)

1 files changed, 1 insertions, 0 deletions

diff --git a/sv.c b/sv.c
index 8bf7cbaabe..b40fb45828 100644
--- a/sv.c
+++ b/sv.c
@@ -11810,6 +11810,7 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param)
 	    TOPPTR(nss,ix) = sv_dup_inc(sv, param);
 	    /* fall through */
 	case SAVEt_ITEM:			/* normal string */
+        case SAVEt_GVSV:			/* scalar slot in GV */
         case SAVEt_SV:				/* scalar reference */
 	    sv = (const SV *)POPPTR(ss,ix);
 	    TOPPTR(nss,ix) = sv_dup_inc(sv, param);