Bug 22781: Test patron's info filtering

The patron's data was not correctly escaped actually.

Test plan:
This is a good value for the whole patchset: <strong>fir's"tname</strong> \123 ❤
use it for a patron's firstname, then do a search

Signed-off-by: Liz Rea <wizzyrea@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>