Do not use packed Javascript file

In ajax.module, ajax_preprocess_page() function, we include the following code:

drupal_add_js($p . '/jquery/jquery.a_form.packed.js', 'module');

This is a packed Javascript file, which causes upstream compatibility issues if you are using an external module to compress your Javascript, such as advagg. In my case it caused certain ajax-enabled views pagers to break.

Fix is easy and a patch is attached in the next comment - just use the non-packed version of the JS that has already been included in the module.