do not access typed properties before initialization

Author: xabbuh

AbstractBrowser.php

@@ -531,7 +531,7 @@ public function reload(): Crawler
      */
     public function followRedirect(): Crawler
     {
-        if (!$this->redirect) {
+        if (!isset($this->redirect)) {
             throw new LogicException('The request was not redirected.');
         }
 

Tests/AbstractBrowserTest.php

@@ -15,6 +15,7 @@
 use Symfony\Component\BrowserKit\CookieJar;
 use Symfony\Component\BrowserKit\Exception\BadMethodCallException;
 use Symfony\Component\BrowserKit\Exception\InvalidArgumentException;
+use Symfony\Component\BrowserKit\Exception\LogicException;
 use Symfony\Component\BrowserKit\History;
 use Symfony\Component\BrowserKit\Request;
 use Symfony\Component\BrowserKit\Response;
@@ -889,4 +890,14 @@ public function testInternalRequestNull()
 
         $client->getInternalRequest();
     }
+
+    public function testFollowRedirectWithoutRequest()
+    {
+        $browser = $this->getBrowser();
+
+        $this->expectException(LogicException::class);
+        $this->expectExceptionMessage('The request was not redirected.');
+
+        $browser->followRedirect();
+    }
 }