Merge pull request #12846 from jdalsem/various-stuff

fix(js): deep merge the elgg.data

views/default/elgg.js.php

@@ -44,7 +44,7 @@
 //<script>
 
 // page data overrides site data
-$.extend(elgg.data, elgg._data);
+elgg.data = $.extend(true, {}, elgg.data, elgg._data);
 delete elgg._data;
 
 // jQuery and UI must be loaded sync in 2.x but modules should depend on these AMD modules