- fixed corner case for the set-intersection computation formula for computation pair calculations with VERY few elements on one side

git-svn-id: https://gnunet.org/svn/gnunet@33340 140774ce-b5e7-0310-ab8b-a85725594a96
- forgot to set concluded intersection OP to NULL

git-svn-id: https://gnunet.org/svn/gnunet@33341 140774ce-b5e7-0310-ab8b-a85725594a96
new test case


git-svn-id: https://gnunet.org/svn/gnunet@33342 140774ce-b5e7-0310-ab8b-a85725594a96