MediaWiki:Apierror-info-singlepagerevision
Multiple pages or revisions were supplied, but $1prop=preloadcontent and $1prop=editintro may only be used with a single page and revision.
Multiple pages or revisions were supplied, but $1prop=preloadcontent and $1prop=editintro may only be used with a single page and revision.
Link to this page:
https://wiki.pastlives.space/MediaWiki:Apierror-info-singlepagerevision