Default organisations' sort order now set on last updated at, descending.

app/controllers/orgas_controller.rb

@@ -9,7 +9,7 @@ class OrgasController < ApplicationController
 
   def index
     @search = Orga.moderated.includes(:kind).includes(:region).search params[:q]
-    @search.sorts = 'name' if @search.sorts.empty?
+    @search.sorts = 'updated_at desc' if @search.sorts.empty?
     @orgas = @search.result.page params[:page]
   end