ActionView::Base @_render_stack is not being filled on edge Rails

I'm the developer of Rails Footnotes plugin and I need to know the location of the template being rendered.

I've put a debugger at the end of process method on ActionController::Base, and then called:


Which returned nil, Since the template method give me the last object in the @_render_stack variable, I've checked and I can't actually see where the @_render_stack is being filled. It's always empty.

Ticket is here: