subphrase matching allows finding nested titles much easier. It would be convenient to make this the default on a few sites where this is common. Probably:
Note: Documentation for the feature is already in https://www.mediawiki.org/wiki/Extension:CirrusSearch/CompletionSuggester#Completion_suggester
Change 485608 had a related patch set uploaded (by DCausse; owner: DCausse):
[operations/mediawiki-config@master] [cirrus] autocomplete: enable subphrase matching for wikitech and mw.org (1/2)
Change 485609 had a related patch set uploaded (by DCausse; owner: DCausse):
[operations/mediawiki-config@master] [cirrus] autocomplete: enable subphrase matching for wikitech and mw.org (2/2)
Change 485608 merged by jenkins-bot:
[operations/mediawiki-config@master] [cirrus] autocomplete: enable subphrase matching for wikitech and mw.org (1/2)
Mentioned in SAL (#wikimedia-operations) [2019-01-25T00:14:12Z] <ebernhardson@deploy1001> Synchronized wmf-config/InitialiseSettings.php: SWAT T212788 gerrit:485608: autocomplete subphrase matching on wikitech and mw.org (duration: 00m 46s)
Change 485609 merged by jenkins-bot:
[operations/mediawiki-config@master] [cirrus] autocomplete: enable subphrase matching for wikitech and mw.org (2/2)
Mentioned in SAL (#wikimedia-operations) [2019-01-25T00:20:38Z] <ebernhardson@deploy1001> Synchronized wmf-config/CirrusSearch-common.php: SWAT T212788 gerrit:485609: autocomplete subphrase matching on wikitech and mw.org 2 of 2 (duration: 00m 45s)