seems new way is working!

Author: MekDrop

src/CommandProvider.php

@@ -17,10 +17,10 @@ class CommandProvider implements CommandProviderCapability {
 	 */
 	public function getCommands() {
 		$file = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'generated' . DIRECTORY_SEPARATOR . 'data.php';
-		$commands = [];
-		if (file_exists($file)) {
-			$commands = include($file);
+		$commands = file_exists($file) ? include($file) : [];
+		if (is_array($commands) === false) {
+			$commands = [];
 		}
-		return $commands;
+		return array_filter((array)$commands);
 	}
 }

src/DefaultDumpWriter.php

@@ -50,11 +50,11 @@ public function __construct(string $filename)
 	public function writeToFile(): bool
 	{
 		$ret = $this->source . PHP_EOL;
-		$ret .= '$commands = array_filter([' . PHP_EOL;
+		$ret .= 'return [' . PHP_EOL;
 		foreach ($this->commands as $command) {
-			$ret .= str_repeat(' ', 4) . 'class_exists("' . $command . '") ? ' . ' new ProxyCommand(' . $command . '::class) : null,' . PHP_EOL;
+			$ret .= str_repeat(' ', 4) . 'class_exists(' . json_encode($command) . ') ? ' . ' new ProxyCommand(' . $command . '::class) : null,' . PHP_EOL;
 		}
-		$ret .= ']);' . PHP_EOL;
+		$ret .= '];' . PHP_EOL;
 
 		return (bool)file_put_contents($this->filename, $ret, LOCK_EX);
 	}

src/ProxyCommand.php

@@ -24,18 +24,21 @@ class ProxyCommand extends BaseCommand
 	 */
 	public function __construct($composerCommandClass)
 	{
-		parent::__construct(null);
-
 		$this->realCommand = new $composerCommandClass();
 
-		$this->setAliases(
-			$this->realCommand->getAliases()
-		);
-		$this->setDescription(
-			$this->realCommand->getDescription()
-		);
-		$this->setDefinition(
-			$this->realCommand->getDefinition()
+		$this
+			->setAliases(
+				$this->realCommand->getAliases()
+			)
+			->setDescription(
+				$this->realCommand->getDescription()
+			)
+			->setDefinition(
+				$this->realCommand->getDefinition()
+			);
+
+		parent::__construct(
+			$this->realCommand->getName()
 		);
 	}