OSIS-4459 fix proposal search with navigation
OSIS-4459 fix proposal search with navigation

	modified:   base/templatetags/navigation.py

uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis