If you kill a mob right before it goes through an end gateway or nether portal, it will transport the dead mobtmob the portal

Steps to reproduce

1. Have a minecart go through an end gateway
2. Right after the minecart goes through the end gateway, push a mob with 1 health into the end gateway
3. Dispense a splash potion of instant damage right before the mob gets transported through the gateway

The mob with die on one side of the end gateway then get transported to the other side of the end gateway

The expected result should be that dead mobs cannot go through end gateways