Correctly apply KigPaper's patch

[ghost]

Description

KigPaper's patch wasn't applied correctly causing a NullPointerException when an entity gets hurt by thorns

Fixes #304

Checklist:

• [x] I have reviewed my code thoroughly.
• [x] I have tested my code.
• [x] My changes generate no new warnings

[Sculas]

Thanks for fixing this Elierr! :)