Index: src_plugins/lib_gtk_common/wt_layersel.c
===================================================================
--- src_plugins/lib_gtk_common/wt_layersel.c	(revision 8667)
+++ src_plugins/lib_gtk_common/wt_layersel.c	(revision 8668)
@@ -565,7 +565,6 @@
 
 	memset(&ls->grp, 0, sizeof(ls->grp));
 	memset(&ls->lsg_virt, 0, sizeof(ls->lsg_virt));
-	memset(&ls->grp_virt, 0, sizeof(ls->grp_virt));
 
 	gtk_widget_destroy(ls->grp_box);
 	ls->grp_box = gtkc_vbox_new(FALSE, 0);