Fix Jenkins search

The Jenkins search is suggesting and returning invalid jobs/links, for instance:

https://qa.nuxeo.org/jenkins/view/Deprecated/search/?q=smart returns:

addons_FT_smart-search-7.10
7.10 addons_FT_smart-search-7.10
addons_nuxeo-platform-smart-search-5.8
addons_nuxeo-platform-smart-search-6.0
addons_nuxeo-platform-smart-search-7.10
addons_FT_nuxeo-platform-smart-search-5.8
addons_FT_nuxeo-platform-smart-search-6.0
addons_nuxeo-platform-smart-search-master
5.8 addons_nuxeo-platform-smart-search-5.8
6.0 addons_nuxeo-platform-smart-search-6.0
7.10 addons_nuxeo-platform-smart-search-7.10
addons_FT_nuxeo-platform-smart-search-master
5.8 addons_FT_nuxeo-platform-smart-search-5.8
6.0 addons_FT_nuxeo-platform-smart-search-6.0
master addons_nuxeo-platform-smart-search-master
master addons_FT_nuxeo-platform-smart-search-master

The 8 first results are invalid (no parent folder)

First link sample: https://qa.nuxeo.org/jenkins/view/Deprecated/search/?q=addons_FT_smart-search-7.10