Add sensing of reconstructor config

core/src/mindustry/world/blocks/units/Reconstructor.java

@@ -185,6 +185,12 @@ public class Reconstructor extends UnitBlock{
             Draw.rect(topRegion, x, y);
         }
 
+        @Override
+        public Object senseObject(LAccess sensor){
+            if(sensor == LAccess.config) return unit();
+            return super.senseObject(sensor);
+        }
+
         @Override
         public void updateTile(){
             boolean valid = false;