506 tags in question list

The association sort caused the following error on some pages, like questions#index:
```
Mysql2::Error: Unknown column 'tags.name' in 'order clause': SELECT `taggings`.* FROM `taggings`  WHERE `taggings`.`question_id` IN (213, 214, 223, 220, 221, 222, 224, 225, 215, 150, 217, 219, 182, 166, 167, 168, 169, 158, 146, 147, 149, 148, 177, 175, 164) ORDER BY tags.name
```
I couldn't figure out why it was trying to apply the ordering from tags to taggings. I googled around and no luck. I also tried adding a separate association called `ordered_tags` that only got called in these places, but the same thing happened. I spent nearly an hour on it and then decided I should move on. Do you have any other ideas? If not, I can create a sordid_tags method.