Issue #1794844 by aspilicious: One manager for each use case.

lib/Drupal/views/Plugin/Type/JoinManager.php

+<?php
+
+/**
+ * @file
+ * Definition of Drupal\views\Plugin\Type\JoinManager.
+ */
+
+namespace Drupal\views\Plugin\Type;
+
+use Drupal\Component\Plugin\PluginManagerBase;
+use Drupal\Component\Plugin\Factory\DefaultFactory;
+use Drupal\Core\Plugin\Discovery\AnnotatedClassDiscovery;
+use Drupal\Core\Plugin\Discovery\CacheDecorator;
+
+class JoinManager extends PluginManagerBase {
+
+  /**
+   * A list of Drupal core modules.
+   *
+   * @var array
+   */
+  protected $coreModules = array();
+
+  /**
+   * Constructs a JoinManager object.
+   */
+  public function __construct() {
+    // @todo Remove this hack in http://drupal.org/node/1708404.
+    views_init();
+
+    $this->discovery = new CacheDecorator(new AnnotatedClassDiscovery('views', 'join'), 'views:join', 'views_info');
+    $this->factory = new DefaultFactory($this);
+
+    $this->coreModules = views_core_modules();
+  }
+
+  /**
+   * Overrides Drupal\Component\Plugin\PluginManagerBase::processDefinition().
+   */
+  public function processDefinition(&$definition, $plugin_id) {
+    parent::processDefinition($definition, $plugin_id);
+
+    $module = isset($definition['module']) ? $definition['module'] : 'views';
+    $module_dir = in_array($module, $this->coreModules) ? 'views' : $module;
+
+    $definition += array(
+      'module' => $module_dir,
+    );
+  }
+
+}

lib/Drupal/views/Plugin/Type/ViewsPluginManager.php → lib/Drupal/views/Plugin/Type/PluginManager.php

@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\views\Plugin\Type\ViewsPluginManager.
+ * Definition of Drupal\views\Plugin\Type\PluginManager.
  */
 
 namespace Drupal\views\Plugin\Type;
@@ -12,7 +12,7 @@
 use Drupal\Core\Plugin\Discovery\AnnotatedClassDiscovery;
 use Drupal\Core\Plugin\Discovery\CacheDecorator;
 
-class ViewsPluginManager extends PluginManagerBase {
+class PluginManager extends PluginManagerBase {
 
   /**
    * A list of Drupal core modules.
@@ -21,11 +21,14 @@ class ViewsPluginManager extends PluginManagerBase {
    */
   protected $coreModules = array();
 
+  /**
+   * Constructs a PluginManager object.
+   */
   public function __construct($type) {
     // @todo Remove this hack in http://drupal.org/node/1708404.
     views_init();
 
-    $this->discovery = new CacheDecorator(new AnnotatedClassDiscovery('views', $type), 'views:' . $type, 'views');
+    $this->discovery = new CacheDecorator(new AnnotatedClassDiscovery('views', $type), 'views:' . $type, 'views_info');
     $this->factory = new DefaultFactory($this);
     $this->coreModules = views_core_modules();
     $this->defaults += array(

lib/Drupal/views/Plugin/Type/WizardManager.php

+<?php
+
+/**
+ * @file
+ * Definition of Drupal\views\Plugin\Type\WizardManager.
+ */
+
+namespace Drupal\views\Plugin\Type;
+
+use Drupal\Component\Plugin\PluginManagerBase;
+use Drupal\Component\Plugin\Factory\DefaultFactory;
+use Drupal\Core\Plugin\Discovery\AnnotatedClassDiscovery;
+use Drupal\Core\Plugin\Discovery\CacheDecorator;
+
+class WizardManager extends PluginManagerBase {
+
+  /**
+   * A list of Drupal core modules.
+   *
+   * @var array
+   */
+  protected $coreModules = array();
+
+  /**
+   * Constructs a WizardManager object.
+   */
+  public function __construct() {
+    // @todo Remove this hack in http://drupal.org/node/1708404.
+    views_init();
+
+    $this->discovery = new CacheDecorator(new AnnotatedClassDiscovery('views', 'wizard'), 'views:wizard', 'views_info');
+    $this->factory = new DefaultFactory($this);
+
+    $this->coreModules = views_core_modules();
+  }
+
+  /**
+   * Overrides Drupal\Component\Plugin\PluginManagerBase::processDefinition().
+   */
+  public function processDefinition(&$definition, $plugin_id) {
+    parent::processDefinition($definition, $plugin_id);
+
+    $module = isset($definition['module']) ? $definition['module'] : 'views';
+    $module_dir = in_array($module, $this->coreModules) ? 'views' : $module;
+
+    $definition += array(
+      'module' => $module_dir,
+    );
+  }
+
+}

lib/Drupal/views/ViewsBundle.php

@@ -21,9 +21,17 @@ class ViewsBundle extends Bundle {
    */
   public function build(ContainerBuilder $container) {
     foreach (ViewExecutable::getPluginTypes() as $type) {
-      $container->register("plugin.manager.views.$type", 'Drupal\views\Plugin\Type\ViewsPluginManager')
+      if ($type == 'join') {
+        $container->register('plugin.manager.views.join', 'Drupal\views\Plugin\Type\JoinManager');
+      }
+      elseif ($type == 'wizard') {
+        $container->register('plugin.manager.views.wizard', 'Drupal\views\Plugin\Type\WizardManager');
+      }
+      else {
+        $container->register("plugin.manager.views.$type", 'Drupal\views\Plugin\Type\PluginManager')
           ->addArgument($type);
       }
     }
+  }
 
 }