Le preview présente mieux la carte OSM

app/assets/javascripts/maps.js.coffee

@@ -15,7 +15,7 @@ $(document).ready ->
       ).addTo map
 
 
-  $('.events #map').each ->
+  $('.events #map, .moderations #map').each ->
     coord = [$(this).attr('latitude'), $(this).attr('longitude')]
 
     map = L.map('map').setView [coord[0], coord[1]], 16

app/assets/stylesheets/maps.css.sass

@@ -8,5 +8,5 @@
 .maps #map
   height: 60em
 
-.events #map
+.events #map, .moderations #map
   height: 20em

app/models/event.rb

@@ -57,6 +57,13 @@ class Event < ActiveRecord::Base
     self.submitter = contact if submitter.empty?
   end
 
+  before_validation on: :update do
+    if address_changed?
+      self.latitude = nil
+      self.longitude = nil
+    end
+  end
+
   before_create do
     self.secret = SecureRandom.urlsafe_base64(32)[0...32]
     self.moderator_mail_id = SecureRandom.urlsafe_base64(32)[0...32]