Bug 7328 Expanded options in advanced search

Bug 7328 Expanded options in advanced search

In OPAC and intra advanced search, more search options are displayed
depending on expandedSearchOption syspres and user choice. This doesn't
work anymore in HEAD.

This patch restore this functionnality.

To test:

  - enable/disable expandedSearchOption.
  - Load advanced search page. Limited seach options version is always
    displayed
  - Apply this patch and see how it works...

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
The problem only appeared in the staff client for me.
Tested both OPAC and staff with patch applied.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>