Merge branch '3.4' into 4.4

* 3.4:
  [ExpressionLanguage] Fixed collisions of character operators with object properties
  [Validator] Remove specific check for Valid targets
  [PhpUnitBridge] Use trait instead of extending deprecated class
  fix remember me
  Use strict assertion in asset tests
  [DoctrineBridge][DoctrineExtractor] Fix indexBy with custom and some core types
  Do not rely on the current locale when dumping a Graphviz object
  fix typo
  [Ldap] force default network timeout
  [Config] don't throw on missing excluded paths
  Docs: Typo, grammar
  [Validator] Add the missing translations for the Polish ("pl") locale
  [Console] Inline exact-match handling with 4.4
  Set previous exception when rethrown from controller resolver
  [VarDumper] fixed DateCaster not displaying additional fields
  [HttpKernel] fix registering DebugHandlersListener regardless of the PHP_SAPI

Application.php

@@ -672,15 +672,7 @@ public function find($name)
         // filter out aliases for commands which are already on the list
         if (\count($commands) > 1) {
             $commandList = $this->commandLoader ? array_merge(array_flip($this->commandLoader->getNames()), $this->commands) : $this->commands;
-
-            if (isset($commandList[$name])) {
-                return $this->get($name);
-            }
-
-            foreach ($commands as $k => $nameOrAlias) {
-                if ($nameOrAlias === $name) {
-                    return $this->get($nameOrAlias);
-                }
+            $commands = array_unique(array_filter($commands, function ($nameOrAlias) use (&$commandList, $commands, &$aliases) {
                 if (!$commandList[$nameOrAlias] instanceof Command) {
                     $commandList[$nameOrAlias] = $this->commandLoader->get($nameOrAlias);
                 }
@@ -689,14 +681,8 @@ public function find($name)
 
                 $aliases[$nameOrAlias] = $commandName;
 
-                if ($commandName === $nameOrAlias || !\in_array($commandName, $commands)) {
-                    continue;
-                }
-
-                unset($commands[$k]);
-            }
-
-            $commands = array_unique($commands);
+                return $commandName === $nameOrAlias || !\in_array($commandName, $commands);
+            }));
         }
 
         if (\count($commands) > 1) {