Consider this index:
https://uk.wikisource.org/wiki/Індекс:Твори_Котляревського._Том_1_%281922%29.djvu

and this page (which doesn't exist yet):
https://uk.wikisource.org/w/index.php?title=Сторінка:Твори_Котляревського._Том_1_%281922%29.djvu/141&action=edit&redlink=1

The footer has value {{rh|{{{pagenum}}}||{{{pagenum}}}}} but {{{pagenum}}} is not substituted with the actual page number when the corresponding page is created.

Version: unspecified
Severity: normal