I'm experiencing an issue with it as well.
Before 2019.2, I could add the SkeletonRagdoll2D script to a spine object, set the gravity to 0, and it was an easy hack to allow for collision as long I wasn't concerned about animation.
Now, in 2019.2.9f1, it acts as if gravity is higher than 0, even if it's set to 0. If I apply on start, it will automatically ragdoll to the ground regardless of the gravity set.