Steps to replicate the issue (include links if applicable):
- Open https://meta.wikimedia.org/wiki/List_of_Wikipedias#All_Wikipedias_ordered_by_number_of_articles and check the number of articles (aka content pages, according to Special:Statistics) of a random Wikipedia; for example, English Wikipedia or Spanish Wikipedia.
- Open stats.wikimedia.org, go to "Content" section and split "Pages to date" by page type: select "Content pages" (English Wikipedia: https://stats.wikimedia.org/#/en.wikipedia.org/content/pages-to-date/normal|line|all|page_type~content|monthly and Spanish Wikipedia: https://stats.wikimedia.org/#/es.wikipedia.org/content/pages-to-date/normal|line|2-year|page_type~content|monthly, to keep with initial examples).
What happens?:
There's a much larger amount of content pages (hundreds of thousands, or even millions) on Wikimedia Statistics (2nd step), compared to number of articles/content pages on Meta-Wiki/Special:Statistics (1st step).
What should have happened instead?:
Numbers from both metrics should be almost paired (small inequalities due to monthly update on Wikistats): 6.76 million articles on enwiki, 1.9 million for eswiki, 741k for cawiki, 564k on fiwiki, etc.
Software version (skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):
Probably the same bug as T354074 reported for Latvian Wiki, but it affects multiple Wikipedias: at least the first 50 ones, except maybe Egyptian Arabic and Chcechen Wikipedias.