Instead of seeing the "No file by this name exists" page, an exception is thrown.
E.g. https://federated-commons.wmflabs.org/wiki/File:Non-existing.jpg
Original exception: [83756da7024c10f173ce2abb] /wiki/File:Non-existing.jpg InvalidArgumentException from line 41 of /var/www/w/extensions/WikibaseMediaInfo/src/DataModel/MediaInfoId.php: $idSerialization must match /^M[1-9]\d{0,9}\z/i
Backtrace:
#0 /var/www/w/extensions/WikibaseMediaInfo/src/DataModel/MediaInfoId.php(28): Wikibase\MediaInfo\DataModel\MediaInfoId->assertValidIdFormat(string)
#1 /var/www/w/extensions/WikibaseMediaInfo/WikibaseMediaInfo.entitytypes.php(122): Wikibase\MediaInfo\DataModel\MediaInfoId->__construct(string)
#2 /var/www/w/extensions/Wikibase/vendor/wikibase/data-model-services/src/EntityId/EntityIdComposer.php(62): Wikibase\MediaInfo\WikibaseMediaInfoHooks::{closure}(string, integer)
#3 /var/www/w/extensions/WikibaseMediaInfo/src/WikibaseMediaInfoHooks.php(115): Wikibase\DataModel\Services\EntityId\EntityIdComposer->composeEntityId(string, string, integer)
#4 [internal function]: Wikibase\MediaInfo\WikibaseMediaInfoHooks::onBeforePageDisplay(OutputPage, SkinVector)
#5 /var/www/w/includes/Hooks.php(177): call_user_func_array(string, array)
#6 /var/www/w/includes/Hooks.php(237): Hooks::callHook(string, string, array, NULL, string)
#7 /var/www/w/includes/OutputPage.php(2460): Hooks::runWithoutAbort(string, array)
#8 /var/www/w/includes/MediaWiki.php(870): OutputPage->output(boolean)
#9 /var/www/w/includes/MediaWiki.php(882): MediaWiki->{closure}()
#10 /var/www/w/includes/MediaWiki.php(524): MediaWiki->main()
#11 /var/www/w/index.php(42): MediaWiki->run()
#12 {main}