Rewrite of middleware sorting returns duplicates

[SuperlativeEntity]

• Laravel Version: 5.3.19
• PHP Version: PHP 5.6.25 (cli) (built: Aug 18 2016 11:40:20)
• Database Driver & Version: Server version: 10.1.9-MariaDB-log mariadb.org binary distribution

Description:

framework/src/Illuminate/Routing/Router.php - function sortMiddleware returns an array with duplicates

Steps To Reproduce:

Debug or log output of function

Laravel Version: 5.3.18
sortMiddleware {"sorted":[
"Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse",
"Illuminate\Session\Middleware\StartSession",
"Illuminate\View\Middleware\ShareErrorsFromSession",
"App\Http\Middleware\VerifyCsrfToken",
"App\Http\Middleware\FilterIfPjax",
"App\Http\Middleware\ForceHttps",
"App\Http\Middleware\JSONRequest"]}

Laravel Version: 5.3.19
[2016-10-20 20:17:48] local.INFO: sortMiddleware {"wtf":[
"Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse",
"Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse",
"Illuminate\Session\Middleware\StartSession",
"Illuminate\Session\Middleware\StartSession",
"Illuminate\View\Middleware\ShareErrorsFromSession",
"App\Http\Middleware\VerifyCsrfToken",
"App\Http\Middleware\FilterIfPjax",
"App\Http\Middleware\ForceHttps",
"App\Http\Middleware\JSONRequest",
"Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse",
"Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse",
"Illuminate\View\Middleware\ShareErrorsFromSession",
"App\Http\Middleware\VerifyCsrfToken",
"App\Http\Middleware\FilterIfPjax",
"App\Http\Middleware\ForceHttps",
"App\Http\Middleware\JSONRequest",
"App\Http\Middleware\SentinelCheck",
"App\Http\Middleware\SentinelHasAccess",
"App\Http\Middleware\SessionExpired",
"App\Http\Middleware\UserActivity",
"App\Http\Middleware\JSONRequest"]}

[SuperlativeEntity]

Fix: return array_unique((new SortedMiddleware($this->middlewarePriority, $middlewares))->all());

[themsaid]

Fixed in the PR linked with the issue.