Merge branch '4.4' into 5.4

* 4.4:
  [PropertyAccess] Fix handling of uninitialized property of parent class
  [DomCrawler] ignore bad charsets
  [Validator] Fix minRatio and maxRatio when getting rounded
  [Console] Revert StringInput bc break from #45088
  [Form] Do not fix URL protocol for relative URLs
  [Serializer] make XmlEncoder stateless thus reentrant

Author: nicolas-grekas

Extension/Core/EventListener/FixUrlProtocolListener.php

@@ -36,7 +36,7 @@ public function onSubmit(FormEvent $event)
     {
         $data = $event->getData();
 
-        if ($this->defaultProtocol && $data && \is_string($data) && !preg_match('~^([\w+.-]+://|[^:/?@#]++@)~', $data)) {
+        if ($this->defaultProtocol && $data && \is_string($data) && !preg_match('~^(?:[/.]|[\w+.-]+://|[^:/?@#]++@)~', $data)) {
             $event->setData($this->defaultProtocol.'://'.$data);
         }
     }

Tests/Extension/Core/EventListener/FixUrlProtocolListenerTest.php

@@ -20,10 +20,25 @@
 
 class FixUrlProtocolListenerTest extends TestCase
 {
+    /**
+     * @dataProvider provideUrlToFix
+     */
+    public function testFixUrl($data)
+    {
+        $form = new Form(new FormConfigBuilder('name', null, new EventDispatcher()));
+        $event = new FormEvent($form, $data);
+
+        $filter = new FixUrlProtocolListener('http');
+        $filter->onSubmit($event);
+
+        $this->assertSame('http://'.$data, $event->getData());
+    }
+
     public function provideUrlToFix()
     {
         return [
             ['www.symfony.com'],
+            ['symfony.com/doc'],
             ['twitter.com/@symfony'],
             ['symfony.com?foo@bar'],
             ['symfony.com#foo@bar'],
@@ -32,17 +47,17 @@ public function provideUrlToFix()
     }
 
     /**
-     * @dataProvider provideUrlToFix
+     * @dataProvider provideUrlToSkip
      */
-    public function testFixUrl($data)
+    public function testSkipUrl($url)
     {
         $form = new Form(new FormConfigBuilder('name', null, new EventDispatcher()));
-        $event = new FormEvent($form, $data);
+        $event = new FormEvent($form, $url);
 
         $filter = new FixUrlProtocolListener('http');
         $filter->onSubmit($event);
 
-        $this->assertEquals('http://'.$data, $event->getData());
+        $this->assertSame($url, $event->getData());
     }
 
     public function provideUrlToSkip()
@@ -56,20 +71,9 @@ public function provideUrlToSkip()
             ['iris.beep://foo'],
             ['foo+bar://foo'],
             ['[email protected]'],
+            ['//relative/url'],
+            ['/relative/url'],
+            ['./relative/url'],
         ];
     }
-
-    /**
-     * @dataProvider provideUrlToSkip
-     */
-    public function testSkipUrl($url)
-    {
-        $form = new Form(new FormConfigBuilder('name', null, new EventDispatcher()));
-        $event = new FormEvent($form, $url);
-
-        $filter = new FixUrlProtocolListener('http');
-        $filter->onSubmit($event);
-
-        $this->assertEquals($url, $event->getData());
-    }
 }