# 
# 
# patch "roster.cc"
#  from [4c069ccd18ed3a6dc3e9c99aa13ea41bafbb2fb6]
#    to [1c67501f0f7d546ce3231aea6f4bd6fbe7b47c30]
# 
============================================================
--- roster.cc	4c069ccd18ed3a6dc3e9c99aa13ea41bafbb2fb6
+++ roster.cc	1c67501f0f7d546ce3231aea6f4bd6fbe7b47c30
@@ -712,6 +712,7 @@
       I(null_node(parent) && null_name(name));
       I(null_node(n->parent));
       I(null_name(n->name));
+      I(!has_root());
       root_dir = downcast_to_dir_t(n);
       I(i == old_locations.end() || i->second != make_pair(root_dir->parent,
                                                            root_dir->name));