By default there is no pending length on the convertor.

This commit was SVN r8047.

ompi/datatype/convertor.c

@@ -287,6 +287,7 @@ inline int ompi_convertor_prepare( ompi_convertor_t* convertor,
     convertor->flags         |= (CONVERTOR_DATATYPE_MASK & datatype->flags);
     convertor->pDesc          = (ompi_datatype_t*)datatype;
     convertor->bConverted     = 0;
+    convertor->pending_length = 0;
 
     /* Decide which data representation will be used for the conversion. */
     if( (NULL != datatype->opt_desc.desc) && (convertor->flags & CONVERTOR_HOMOGENEOUS) ) {