When a template is served as ajax template (placeholder ph thisCallIsServedAsAjax( x, y )), the newly created environment for serving the called template should use existing request variables.
Right now, it creates a new map of request variables, causing modifications made to request vars within the called template to be isolated from the vars from the surrounding page or ajax template (i.e. the commanding page). This currently breaks the dirty flagging in IceDust, which uses request vars for this purpose.

Submitted by Elmer van Chastelet on 26 June 2018 at 16:02