**Steps to replicate the issue** (include links if applicable):
* Go to https://sr.wikipedia.org/wiki/Посебно:Врати/Стефан_III_од_Угарске or https://sr.wikipedia.org/wiki/Посебно:Врати/Списак_мађарских_владара
* Undelete the edit
**What happens?**:
`[b85090a0-1513-499e-80b6-ef6bdee47075] 2024-03-17 15:40:07: Фатална грешка типа „Error”`
**What should have happened instead?**:
No error at all
**Software version** (skip for WMF-hosted wikis like Wikipedia):
Serbian Wikipedia (group2)
==== Error ====
* mwversion: 1.42.0-wmf.22
* reqId: b85090a0-1513-499e-80b6-ef6bdee47075
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2024-03-16T15:40:07.417Z',to:'2024-03-18T15:40:07.417Z'))&_a=(query:(query_string:(query:'reqId:%22b85090a0-1513-499e-80b6-ef6bdee47075%22'))) | Find reqId in Logstash ]]
```name=normalized_message,lines=10
[{reqId}] {exception_url} Error: Call to a member function getModel() on null
```
```name=exception.trace,lines=10
from /srv/mediawiki/php-1.42.0-wmf.22/includes/page/UndeletePage.php(542)
#0 /srv/mediawiki/php-1.42.0-wmf.22/includes/page/UndeletePage.php(326): MediaWiki\Page\UndeletePage->undeleteRevisions(WikiPage, array, string)
#1 /srv/mediawiki/php-1.42.0-wmf.22/includes/page/UndeletePage.php(259): MediaWiki\Page\UndeletePage->undeleteUnsafe(string)
#2 /srv/mediawiki/php-1.42.0-wmf.22/includes/specials/SpecialUndelete.php(1606): MediaWiki\Page\UndeletePage->undeleteIfAllowed(string)
#3 /srv/mediawiki/php-1.42.0-wmf.22/includes/specials/SpecialUndelete.php(386): MediaWiki\Specials\SpecialUndelete->undelete()
#4 /srv/mediawiki/php-1.42.0-wmf.22/includes/specialpage/SpecialPage.php(720): MediaWiki\Specials\SpecialUndelete->execute(NULL)
#5 /srv/mediawiki/php-1.42.0-wmf.22/includes/specialpage/SpecialPageFactory.php(1650): MediaWiki\SpecialPage\SpecialPage->run(NULL)
#6 /srv/mediawiki/php-1.42.0-wmf.22/includes/actions/ActionEntryPoint.php(504): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, MediaWiki\Context\RequestContext)
#7 /srv/mediawiki/php-1.42.0-wmf.22/includes/actions/ActionEntryPoint.php(145): MediaWiki\Actions\ActionEntryPoint->performRequest()
#8 /srv/mediawiki/php-1.42.0-wmf.22/includes/MediaWikiEntryPoint.php(199): MediaWiki\Actions\ActionEntryPoint->execute()
#9 /srv/mediawiki/php-1.42.0-wmf.22/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#10 /srv/mediawiki/w/index.php(3): require(string)
#11 {main}
```
==== Impact ====
==== Notes ====