Proofread of the month incorrectly reported as fully transcluded

[Pokechu22]

The main page seems to transclude all pages in the proofread of the month when it builds the status bar. Thus, for instance, blank page 426 is reported as transcluded (archive), but it isn't actually transcluded anywhere other than the main page (and its sandbox subpages), see links (archive).

This is because the main page is on the mainspace on English Wikisource, and wouldn't affect all editions (such as French Wikisource), though other editions don't necessarily have the same status bar. It might be possible to fix it by explicitly excluding "Main Page" and its subpages, though that wouldn't work for all languages.