Check for adding back should be within mismatch check

cookbooks/boxcutter_site_settings/recipes/remap_users.rb

@@ -37,15 +37,15 @@
     puts "MISCHA remap_users: user=#{user_name}: " \
       "current_uid=#{current_user_data['uid']}, " \
       "desired_uid=#{desired_user_data['uid']}"
-  end
 
-  ruby_block "Fail if removing user #{user_name} and not adding back" do
-    block do
-      fail "boxcutter_site_settings::remap_users: User #{user_name} would be " \
-        "removed, but not added back to node['fb_users']['users'], aborting."
-    end
-    not_if do
-      node['fb_users']['users'][user_name]
+    ruby_block "Fail if removing user #{user_name} and not adding back" do
+      block do
+        fail "boxcutter_site_settings::remap_users: User #{user_name} would be " \
+          "removed, but not added back to node['fb_users']['users'], aborting."
+      end
+      not_if do
+        node['fb_users']['users'][user_name]
+      end
     end
   end
 end