Last modified: 2014-11-01 17:57:00 UTC
When encountering a page history that requires a large amount of revision deletions (e.g. copyright violations spanning over years of edits) it would be most helpful to have a option to invert the selected revisions. This feature would be similar to the invert feature available when restoring deleted revisions.
Which specific page does this refer to, starting with "Special:"? https://bugzilla.wikimedia.org/buglist.cgi?component=Page%20deletion&component=Revision%20deletion&component=Special%20pages&product=MediaWiki&query_format=advanced&short_desc=inver&short_desc_type=allwordssubstr
I believe it's handled through Special:RevisionDelete. (Though to use the function, you have to specify the revisions first.) To pick the revisions, you select them from the article history page.