Fix leave organisation uri

assets/avsdev/js/widgets/organisations.js

@@ -221,7 +221,7 @@ function bindOrganisationButtons(el, options) {
         e.preventDefault();
 
         $("body").ufModal({
-            sourceUrl: site.uri.public + "/modals/organisations/o/" + page.organisation_slug + "/members/confirm-leave",
+            sourceUrl: site.uri.public + "/modals/organisations/o/" + $(this).data('slug') + "/members/confirm-leave",
             ajaxParams: {
                 slug: $(this).data('slug')
             },