Issue Description: Poxbursters are still immune to push a lot of the time when they jump.
Steps to Reproduce: I am using the agripinaa shotgun in the meat grinder with the creature spawner mod. I spawn a poxburster and shoot it as it runs at me which makes it stumble. If I don’t shoot again, I can push the poxburster when it jumps. If I shoot it again during its stumble animation and the poxburster is close to starting its jump, the poxburster is unpushable. If the poxburster is far away and I shoot it during the stumble animation, it will properly recover and be pushable when it finally jumps at me. The issue clearly has something to do with staggering the poxburster during the stumble animation when it is close to jumping.
This also plays into the odd poxburster behavior with burn ticks. Since every tick of burn causes the poxburster to stumble, they are almost guaranteed to be unpushable when they jump at you while burning since they will always take a burn tick during the stumble animation. Sometimes the burn ticks randomly knock them to the ground though.