字段里带有问号可能会引起的问题

```
What steps will reproduce the problem?
1. 字段里带有问号会有问题，导致失败
2.
3.

What is the expected output? What do you see instead?


Please use labels and text to provide additional information.

```

Original issue reported on code.google.com by `602...@gmail.com` on 5 Mar 2012 at 4:20
