tree f9fb8da35083148354afc9e0cff242fa5f2ecbc7
parent b8ee6af7560e18b8c5c9a0ca18d640b66e083260
author Keith Rothman <537074+litghost@users.noreply.github.com> 1571250063 -0700
committer kmurray <kmurray@users.noreply.github.com> 1571434612 -0400

Fix bug in add_subtree_to_route_tree that can result in double free.

Previous code potentially added a rt_node to two linked_rt_edge's,
resulting in a double free when freeing the tree.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>