Fresh vagrant install (with vagrant roles enable visualeditor_wikimedia discussiontools wikimediaevents), getting these warnings on article pages:
Notice: Undefined index: wiki:user-quicktouched:id:1 in /vagrant/mediawiki/includes/libs/objectcache/MediumSpecificBagOStuff.php on line 1083
Call Stack
# Time Memory Function Location
1 0.0000 400600 {main}( ) .../index.php:0
2 0.0031 404464 require( '/vagrant/mediawiki/index.php' ) .../index.php:5
3 0.6627 3993560 wfIndexMain( ) .../index.php:46
4 0.6629 3995688 MediaWiki->run( ) .../index.php:53
5 0.6630 3995688 MediaWiki->main( ) .../MediaWiki.php:548
6 0.7645 4886624 MediaWiki->performRequest( ) .../MediaWiki.php:944
7 0.7675 4901576 MediaWiki->performAction( ) .../MediaWiki.php:316
8 0.7685 4901768 ViewAction->show( ) .../MediaWiki.php:532
9 0.7685 4901744 OutputPage->checkLastModified( ) .../ViewAction.php:68
10 0.7686 4902376 User->getTouched( ) .../OutputPage.php:769
11 0.7686 4902432 WANObjectCache->getCheckKeyTime( ) .../User.php:2342
12 0.7686 4902808 WANObjectCache->getMultiCheckKeyTime( ) .../WANObjectCache.php:888
13 0.7686 4903248 RedisBagOStuff->getMulti( ) .../WANObjectCache.php:958
14 0.7686 4903248 RedisBagOStuff->doGetMulti( ) .../MediumSpecificBagOStuff.php:566
15 0.7694 4906128 RedisBagOStuff->updateOpStats( ) .../RedisBagOStuff.php:229