TNT ignited on fence/wall falls through the fence/wall

The bug

When you place a TNT on top of a fence or wall and ignite the TNT, it will hop, but fall through the fence or wall because a fence/wall is 1.5 blocks high.

Code analysis

The following is based on names using yarn (20w06a).

As said above, the TNT hops, but because of the fence being 1.5 blocks high, the TNT hops into the fences hitbox and as result falls through. The "hop" has a motionY (vertical motion) of 0.20000000298023224 in the net.minecraft.entity.TntEntity.TntEntity initial method. This vertical motion is not enough to get ontop of the fence/wall's hitbox. A suggested value would be; 0.22649273522D. Changing this inital value has very little impact to no-impact (from 6 pixel high jump to 8 pixels jump, roughly).

As mentioned above already; change the intial motion (setVelocity) to: 0.22649273522.

this.setVelocity(-Math.sin(double10) * 0.02, 0.22649273522, -Math.cos(double10) * 0.02);