Fixed #8060

core/src/mindustry/core/Logic.java

@@ -380,19 +380,6 @@ public class Logic implements ApplicationListener{
     public static void researched(Content content){
         if(!(content instanceof UnlockableContent u)) return;
 
-        //TODO node is wrong for shared tech nodes
-        var node = u.techNode;
-
-        //unlock all direct dependencies on client, permanently
-        while(node != null){
-            node.content.unlock();
-            node = node.parent;
-
-            if(node != null && (node.content instanceof Item item && state.rules.hiddenBuildItems.contains(item))){
-                break;
-            }
-        }
-
         state.rules.researched.add(u.name);
     }