fixup! fix: Avoid undefined array key for address list

Author: kesselb

lib/AddressList.php

@@ -20,11 +20,11 @@
  * @psalm-immutable
  */
 class AddressList implements Countable, JsonSerializable {
-	/** @var Address[] */
-	private $addresses;
+	/** @var list<Address> */
+	private array $addresses;
 
 	/**
-	 * @param Address[] $addresses
+	 * @param list<Address> $addresses
 	 */
 	public function __construct(array $addresses = []) {
 		$this->addresses = $addresses;
@@ -65,7 +65,10 @@ public static function fromRow(array $recipient): self {
 	 * @return Address|null
 	 */
 	public function first(): ?Address {
-		return array_first($this->addresses);
+		foreach ($this->addresses as $address) {
+			return $address;
+		}
+		return null;
 	}
 
 	#[\Override]