Hi,
Danny B. and I adapted the script used for non-existing wikis (trunk/tools/web-scripts/missing.php) so it redirects to the respective test wiki at Wikimedia Incubator. This would be a huge usability improvement (however, only for languages configured in Wikimedia). For Wikiversity & Wikisource, the "wiki does not exist" message remains, because BetaWV and OldWikisource don't have a logical page naming system to redirect to.
So I would like to ask if someone can review & deploy this (Commits are here: https://www.mediawiki.org/wiki/Special:Code/MediaWiki?path=/trunk/tools/web-... it may be easier to just review current trunk version). That would be great :)
The relevant bug report is https://bugzilla.wikimedia.org/show_bug.cgi?id=30206 (the initial idea was to do it via DNS/Apache config)
Thank you, SPQRobin