Search did not work any more with python controller

Hej,
 Since https://github.com/sogis/qgis-web-client/commit/1fae824487246d65fa165f05d7bd632e1a32f7ff
the search didn't work any more when using the python-controller. As I don't know if this bugfix works with the php-controller (most likely not), this bugfix could be be improved.


Cheers,
Tobias