Issue #2707689: NodeForm::actions() checks for delete access on new entities

core/lib/Drupal/Core/Flood/DatabaseBackend.php

@@ -9,7 +9,7 @@
 /**
  * Defines the database flood backend. This is the default Drupal backend.
  */
-class DatabaseBackend implements FloodInterface {
+class DatabaseBackend implements FloodInterface, PrefixFloodInterface {
 
   /**
    * The database table name.
@@ -107,6 +107,21 @@ public function clear($name, $identifier = NULL) {
     }
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function clearByPrefix(string $name, string $prefix): void {
+    try {
+      $this->connection->delete(static::TABLE_NAME)
+        ->condition('event', $name)
+        ->condition('identifier', $prefix . '-%', 'LIKE')
+        ->execute();
+    }
+    catch (\Exception $e) {
+      $this->catchException($e);
+    }
+  }
+
   /**
    * {@inheritdoc}
    */