Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  4a5e21e0ba7760d126b1da45d1072c11ddab35e4
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Only adapt first letter in AutocompleteInterface

Only adapt the case of the input value's first letter to the suggestion list's first item.
This will not cause any interference when typing upper case strings that actually deliver
suggestions whose letter case does not match.

Change-Id: Idce65fc766606a3c7ad437fe723e796221e64b62