fix wrong position on feature edit if ordered by modification date

src/store/modules/feature.store.js

@@ -198,7 +198,7 @@ const feature = {
 
         const slug_type_signal = rootState['feature-type'].current_feature_type_slug;
 
-        if (routeName === 'ajouter-signalement' && !query.ordering) {
+        if (routeName === 'ajouter-signalement' && query && !query.ordering) {
           const project = rootState.projects.project;
           query = {
             ordering: project.feature_browsing_default_sort,
@@ -207,8 +207,9 @@ const feature = {
           if (project.feature_browsing_default_filter === 'feature_type_slug')  {
             query['feature_type_slug'] = slug_type_signal;
           }
-        } else if (query.ordering === '-updated_on') { // else(when editing a feature) and if the list is ordered by update time
-          query.offset = 0;// it would be in first position
+        }
+        if (query && query.ordering === '-updated_on') { // if the list is ordered by update time
+          query.offset = 0;// it would be in first position (else, if ordered by creation, the position won't change anyway)
         }
 
         dispatch(