Fix bug where message list columns could be in wrong order after column dra...

Aleksander Machniak

2016-05-20 e48f8945b32ab5b67f1cdeb53a37d3d196e31e4d

 program/js/treelist.js

@@ -334,7 +334,7 @@

      // re-render the entire subtree
      if (parent_node.children.length == 1) {
        render_node(parent_node, parent_li.parent(), parent_li);
        render_node(parent_node, null, parent_li);
        li = id2dom(node.id);
      }
      else {