Merge branch 'stable' into next-minor

src/network/mcpe/convert/ItemTranslator.php

@@ -169,6 +169,7 @@ final class ItemTranslator{
 	}
 
 	/**
+	 * @phpstan-param-out bool $isComplexMapping
 	 * @return int[]
 	 * @phpstan-return array{int, int}
 	 * @throws TypeConversionException

src/network/upnp/UPnP.php

@@ -150,6 +150,7 @@ class UPnP{
 			throw new UPnPException("Failed to recognize the port number from the router's url: {$location}");
 		}
 		$urlPort = $url['port'];
+		$err = "";
 		$response = Internet::getURL($location, 3, [], $err);
 		if($response === null){
 			throw new UPnPException("Unable to access XML: {$err}");