Issue #3172757 by Erik Frèrejean, raman.b: Session manager destroy misses isCli check

(cherry picked from commit 86ef18f1ceecc618bf44ea6b7cb0adca5ea974d2)

core/lib/Drupal/Core/Session/SessionManager.php

@@ -257,6 +257,10 @@ public function delete($uid) {
    * {@inheritdoc}
    */
   public function destroy() {
+    if ($this->isCli()) {
+      return;
+    }
+
     session_destroy();
 
     // Unset the session cookies.

core/tests/Drupal/KernelTests/Core/Session/SessionManagerDestroyNoCliCheckTest.php

+<?php
+
+namespace Drupal\KernelTests\Core\Session;
+
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests starting and destroying a session from the CLI.
+ *
+ * @group Session
+ */
+class SessionManagerDestroyNoCliCheckTest extends KernelTestBase {
+
+  /**
+   * Tests starting and destroying a session from the CLI.
+   */
+  public function testCallSessionManagerStartAndDestroy() {
+    $this->assertFalse(\Drupal::service('session_manager')->start());
+    $this->assertNull(\Drupal::service('session_manager')->destroy());
+  }
+
+}