Not sure if this is problem with composer installers or vector, here is what happens:
- get an empty clone of mediawiki core git master
- put this into composer.local.json:
{ "require": { "mediawiki/vector-skin": "dev-master" }, "minimal-stabilty": "dev" }
- run composer update
- run the CLI installer to create LocalSettings.php
- add $wgResourceLoaderDebug = true
then the console alerts me that http://tools.wikimedia.pl/~saper/sf/skins/Vector/collapsibleTabs.js is 404.
There are skins that usually install into the lowercased directory, too.
MediaWiki core 5b0ebd7f3a6e1c215a6af56d966ee14047a9b44f
Composer version 1.0-dev (1c525b76f81123af180743d31c208c29351cf931) 2015-12-09 15:47:26
skins/vector d09432a65f6183e9dbd2380ed51f447064deee12
composer/installers v1.0.22 bd9b14f094c89c8b5804a4e41edeb7853bb85046 - master a the moment