Copy the packed buffer when we duplicate a basic datatype.

This commit was SVN r8931.

ompi/datatype/dt_create.c

@@ -48,6 +48,7 @@ static void __get_free_dt_struct( ompi_datatype_t* pData )
     pData->d_f_to_c_index     = ompi_pointer_array_add(ompi_datatype_f_to_c_table, pData);
     pData->d_keyhash          = NULL;
     pData->name[0]            = '\0';
+    pData->packed_description = NULL;
 }
 
 static void __destroy_ddt_struct( ompi_datatype_t* datatype )

ompi/datatype/dt_module.c

@@ -288,6 +288,8 @@ int ompi_ddt_local_sizes[DT_MAX_PREDEFINED];
         if( (PDST)->opt_desc.desc != NULL )                             \
             free( (PDST)->opt_desc.desc );                              \
         (PDST)->opt_desc = (PSRC)->opt_desc;                            \
+        (PDST)->packed_description = (PSRC)->packed_description;        \
+        (PSRC)->packed_description = NULL;                              \
         memcpy( (PDST)->btypes, (PSRC)->btypes,                         \
                 DT_MAX_PREDEFINED * sizeof(uint32_t) );                 \
     } while(0)