Corrected patch from Tetsuya Mishima (i.e., a more correct fix than

r30086: make sure that a super item is constructed properly).

Refs trac:4035

This commit was SVN r30090.

The following SVN revision numbers were found above:
  r30086 --> open-mpi/ompi@d1c63f878e

The following Trac tickets were found above:
  Ticket 4035 --> https://svn.open-mpi.org/trac/ompi/ticket/4035

opal/class/opal_tree.c

@@ -79,12 +79,13 @@ static void opal_tree_item_destruct(opal_tree_item_t *item)
 
 static void opal_tree_construct(opal_tree_t *tree)
 {
+    OBJ_CONSTRUCT( &(tree->opal_tree_sentinel), opal_tree_item_t );
+
 #if OPAL_ENABLE_DEBUG
     /* These refcounts should never be used in assertions because they
        should never be removed from this list, added to another list,
        etc.  So set them to sentinel values. */
 
-    OBJ_CONSTRUCT( &(tree->opal_tree_sentinel), opal_tree_item_t );
     tree->opal_tree_sentinel.opal_tree_item_refcount  = 1;
     tree->opal_tree_sentinel.opal_tree_item_belong_to = tree;
 #endif
@@ -128,7 +129,6 @@ void opal_tree_init(opal_tree_t *tree, opal_tree_comp_fn_t comp,
     tree->serialize = serialize;
     tree->deserialize = deserialize;
     tree->get_key = get_key;
-    opal_tree_get_root(tree)->opal_tree_num_children = 0;
 }
 
 /*