MédiaWiki:Apihelp-compare-paramvalue-prop-user
The username and ID of the 'from' and 'to' revisions. If the user has been revision deleted, a fromuserhidden or touserhidden property will be returned.
The username and ID of the 'from' and 'to' revisions. If the user has been revision deleted, a fromuserhidden or touserhidden property will be returned.