Fix default pose state

SpigotCore_Main/src/de/steamwar/entity/REntity.java

@@ -55,7 +55,7 @@ public class REntity {
     private byte headYaw;
 
     private boolean invisible;
-    private FlatteningWrapper.EntityPose pose;
+    private FlatteningWrapper.EntityPose pose = FlatteningWrapper.EntityPose.NORMAL;
     private boolean bowDrawn;
     private int fireTick;
     private String displayName;