Did the change address a specific bug/feature?
Did the change effectively fix/implement the bug/feature?
Is the final change merged into Lernanta and used at p2pu.org?
For obtaining the P2PU Open source developer badge you need to contribute some source code.
I do however think that you deserve the P2PU Technical Contributor badge. You can get this badge by completing the Introduction to Lernanta Challenge. (Assuming that you did set up the environment for development)