Sync core units with spawner block database tab

core/src/mindustry/world/blocks/storage/CoreBlock.java

@@ -147,6 +147,14 @@ public class CoreBlock extends StorageBlock{
         super.init();
     }
 
+    @Override
+    public void postInit(){
+        super.postInit();
+
+        //sync shown planets with unit spawned
+        unitType.shownPlanets.addAll(shownPlanets);
+    }
+
     @Override
     public boolean canBreak(Tile tile){
         return state.isEditor();