no move buff while flying

src/engine/objects/PlayerCharacter.java

@@ -4828,7 +4828,7 @@ public class PlayerCharacter extends AbstractCharacter {
                 }
 
                 if(this.isFlying()){
-                    if(this.getBonuses() != null && this.getBonuses().getFloat(ModType.Speed,SourceType.None) > 0){
+                    if(this.getBonuses() != null && this.getBonuses().getFloat(ModType.Speed,SourceType.BUFF) > 0){
                         GroundPlayer(this);
                     }
                 }