mbleigh/acts-as-taggable-on — pull request #456 by znz (2014-01-08 05:32:03+00:00)
Title: fix as_8bit_ascii changes argument's encoding

I met encoding problem after save.

Example in `rails console`:
```
> post.tag_list = ["\u3042"]
=> ["あ"]
> post.tag_list[0].encoding
=> #
> post.save
(snip queries)
=> true
> post.tag_list[0].encoding
=> #
```

And logger says `log writing failed. "\xE3" from ASCII-8BIT to UTF-8` when running specs.