suggestion from @xabbuh

henderkes · henderkes · commit d31b5bf94209 · 2025-11-29T14:18:37.000+01:00
diff --git a/src/Symfony/Component/Console/Command/Command.php b/src/Symfony/Component/Console/Command/Command.php
@@ -121,12 +121,14 @@ public function __construct(?string $name = null, ?callable $code = null)
             }
 
             // we must not overwrite existing aliases, combine new ones with existing ones
-            $aliases = array_unique([
+            $aliases = array_unique(array_filter([
                 ...$this->aliases,
                 ...$aliases,
-            ]);
+            ]));
 
-            $this->setAliases($aliases);
+            if ([] !== $aliases) {
+                $this->setAliases($aliases);
+            }
         }
 
         if (null !== $name) {
