fixes #55, fix test

ft/tests/test-pick-child-to-flush.cc

@@ -303,7 +303,7 @@ doit (void) {
     assert(num_flushes_called == 1);
 
     toku_pin_node_with_min_bfe(&node, node_internal, t);
-    assert(!node->dirty); // nothing was flushed, so node better not be dirty
+    assert(node->dirty); // nothing was flushed, but since we were trying to flush to a leaf, both become dirty
     toku_assert_entire_node_in_memory(node);
     assert(node->n_children == 2);
     // both buffers should be empty now
@@ -332,13 +332,18 @@ doit (void) {
         assert(num_flushes_called == 2);
     
         toku_pin_node_with_min_bfe(&node, node_internal, t);
-        assert(!node->dirty); // nothing was flushed, so node better not be dirty
+        assert(node->dirty);
         toku_unpin_ftnode(t->ft, node);
         toku_pin_node_with_min_bfe(&node, node_leaf[0], t);
-        assert(!node->dirty); // nothing was flushed, so node better not be dirty
+        assert(node->dirty);
         toku_unpin_ftnode(t->ft, node);
         toku_pin_node_with_min_bfe(&node, node_leaf[1], t);
-        assert(!node->dirty); // nothing was flushed, so node better not be dirty
+        if (i == 0) {
+            assert(!node->dirty);
+        }
+        else {
+            assert(node->dirty);
+        }
         toku_unpin_ftnode(t->ft, node);
     }