# 
# patch "roster.cc"
#  from [e89bd4067b9c09b13d887c04d08e9243f5f23c01]
#    to [94330facdd791b032a55fed00f98f4f26191a9cc]
# 
========================================================================
--- roster.cc	e89bd4067b9c09b13d887c04d08e9243f5f23c01
+++ roster.cc	94330facdd791b032a55fed00f98f4f26191a9cc
@@ -637,6 +637,10 @@
   node_t n = get_node(nid);
   I(null_node(n->parent));
   I(null_name(n->name));
+  // if it's a dir, make sure it's empty
+  if (is_dir_t(n))
+    I(downcast_to_dir_t(n)->children.empty());
+  // all right, kill it
   safe_erase(nodes, nid);
   // can use safe_erase here, because while not every detached node appears in
   // old_locations, all those that used to be in the tree do.  and you should