fix destroy categories error

app/controllers/admin/patchfiles_controller.rb

@@ -19,21 +19,23 @@ class Admin::PatchfilesController < OrbitAdminController
         if i == 0
           tags = tags.collect do |tag|
             tag.module_app_ids = [v.id]
-            tag.save
+            tag.save!
             tag
           end
           cats = cats.collect do |cat|
             cat.module_app_id = v.id
-            cat.save
+            cat.save!
             cat
           end
           auths = auths.collect do |auth|
             auth.module_app_id = v.id
-            auth.save
+            auth.save!
             auth
           end
         else
           v.tag_ids = []
+          v.categories = nil
+          v.authorizations = nil
           v.destroy
         end
       end