Patching Sponge (Fixing Bugs)

Lets say i am running SpongeForge and there is a issue like this one HERE, How would i go about patching my SpongeForge with the same fix given by Faithcaio in that link? I have also tried waiting for new builds and even tried creating my own build by cloning SpongeForge GitHub and then Gradlew-ing it.

anything pushed by devs to our main repository is build automatically, the fix in question there was released months ago