Fix dispaly of "short bio" on copied profile when assigning a term.

#6071 

The "format" for fields in the node form that have "#access = FALSE" is set to the default format of "title_filter". Here we make the default format to be "filtered_html".

The original node in "obama":
![selection_158](https://cloud.githubusercontent.com/assets/4497748/2953517/a45fdc6c-da5c-11e3-8287-d84f4cff6bf3.png)

After copying the node to "john" with a term assigned:
![selection_160](https://cloud.githubusercontent.com/assets/4497748/2953520/a938be48-da5c-11e3-9138-24915b12e2d3.png)

The format of the "short bio" stays the same as in the original node:
![selection_161](https://cloud.githubusercontent.com/assets/4497748/2953524/b8dbd092-da5c-11e3-9b52-5d7e4cee0c0f.png)