How to reset variable between pages

[pmarinov]

I've updated my Ubuntu and Racket moved from v7.0 to v7.2, using raco pkg I installed Pollen for the new Racket which probably also moved it to a later version

Something has changed because a feature for footnotes that used to work started to behave differently.

In pollen.rkt I have:

(define footnotes null)

(define (footnote . elements)
  (case (current-poly-target)
    ...
    [(html)
      ;; Collect into footnotes
      (set! footnotes (append footnotes (list elements)))
    ...

Before, when it worked, the variable footnotes used to collect only entries from the current page that has been rendered, now it collects entries randomly between pages.

What is the best way to reset the variable between pages?

The project:
https://github.com/pmarinov/bash-scripting-guide/blob/master/pollen.rkt

[mbutterick]

See #43 generally, and this message in particular. In short, Pollen now reuses namespaces during batch operations, so tag functions that assume a fresh namespace may need to be adjusted.

[pmarinov]

Thanks for the advise.