Fix crash for missing brackets autogenerating too many materials (#4005)

Author: jurrejelle

src/main/java/com/gregtechceu/gtceu/api/data/chemical/material/Material.java

@@ -171,8 +171,8 @@ public String getModid() {
      * @return if the material should have recipes autogenerated
      */
     public boolean shouldGenerateRecipesFor(@NotNull TagPrefix prefix) {
-        return !this.hasFlag(MaterialFlags.NO_UNIFICATION) ||
-                !this.hasFlag(MaterialFlags.DISABLE_MATERIAL_RECIPES) && !ChemicalHelper.get(prefix, this).isEmpty();
+        return (!this.hasFlag(MaterialFlags.NO_UNIFICATION) ||
+                !this.hasFlag(MaterialFlags.DISABLE_MATERIAL_RECIPES)) && !ChemicalHelper.get(prefix, this).isEmpty();
     }
 
     public void addFlags(MaterialFlag... flags) {