PaperMC/paper-server/nms-patches/net/minecraft/world/entity/vehicle/EntityMinecartCommandBlock.patch

--- a/net/minecraft/world/entity/vehicle/EntityMinecartCommandBlock.java
+++ b/net/minecraft/world/entity/vehicle/EntityMinecartCommandBlock.java
@@ -138,5 +138,12 @@
         public CommandListenerWrapper createCommandSourceStack() {
             return new CommandListenerWrapper(this, EntityMinecartCommandBlock.this.position(), EntityMinecartCommandBlock.this.getRotationVector(), this.getLevel(), 2, this.getName().getString(), EntityMinecartCommandBlock.this.getDisplayName(), this.getLevel().getServer(), EntityMinecartCommandBlock.this);
         }
+
+        // CraftBukkit start
+        @Override
+        public org.bukkit.command.CommandSender getBukkitSender(CommandListenerWrapper wrapper) {
+            return (org.bukkit.craftbukkit.entity.CraftMinecartCommand) EntityMinecartCommandBlock.this.getBukkitEntity();
+        }
+        // CraftBukkit end
     }
 }