More minor patcher issue fixes

core/src/mindustry/ctype/UnlockableContent.java

@@ -97,6 +97,14 @@ public abstract class UnlockableContent extends MappableContent{
         uiIcon = Core.atlas.find(getContentType().name() + "-" + name + "-ui", fullIcon);
     }
 
+    @Override
+    public void afterPatch(){
+        super.afterPatch();
+
+        //reset stats
+        stats = new Stats();
+    }
+
     public boolean isBanned(){
         return false;
     }

core/src/mindustry/world/Block.java

@@ -702,6 +702,7 @@ public class Block extends UnlockableContent implements Senseable{
 
     @Override
     public void afterPatch(){
+        super.afterPatch();
         barMap.clear();
         setBars();
     }

core/src/mindustry/world/meta/Stats.java

@@ -3,9 +3,11 @@ package mindustry.world.meta;
 import arc.struct.ObjectMap.*;
 import arc.struct.*;
 import arc.util.*;
+import mindustry.mod.*;
 import mindustry.type.*;
 
 /** Hold and organizes a list of block stats. */
+@NoPatch
 public class Stats{
     /** Whether to display stats with categories. If false, categories are completely ignored during display. */
     public boolean useCategories = false;