After upgrading a Wiki running MediaWiki 1.24.4 to 1.26 I am getting:
Uncaught ReferenceError: jQuery is not defined with action=formedit on MW 1.26
in the browser's developer console (Chrome 47 on Win 8.1)
This error points to the following line in the HTML:
` <script>jQuery(function()(mw.loader.using("ext.semanticforms.wikieditor",function()(jQuery('#input_2')... `
Not sure what is the right component to file this.