bd016f45_Manual_Hooks___MediaWiki__Description
[Version] 1.1801.18.0 [Hook] UndeleteForm::undelete [Called From] SpecialUndelete.php [Description] 
Called un UndeleteForm::undelete, after checking that the site is not in read-only mode, that the Title object is not null and after a PageArchive object has been constructed but before performing any further processing.
Manual:Hooks - MediaWiki
Description