Issue #2105555 by Bladedu: Plugins cache prefix names not consistent between plugin managers.

core/lib/Drupal/Core/Archiver/ArchiverManager.php

core/lib/Drupal/Core/Condition/ConditionManager.php

core/lib/Drupal/Core/Entity/Field/FieldTypePluginManager.php

core/lib/Drupal/Core/ImageToolkit/ImageToolkitManager.php

core/lib/Drupal/Core/Menu/LocalTaskManager.php

core/lib/Drupal/Core/TypedData/TypedDataManager.php

core/lib/Drupal/Core/Validation/ConstraintManager.php

.../lib/Drupal/aggregator/Plugin/AggregatorPluginManager.php

...es/ckeditor/lib/Drupal/ckeditor/CKEditorPluginManager.php

...modules/editor/lib/Drupal/editor/Plugin/EditorManager.php

...l/entity_reference/Plugin/Type/SelectionPluginManager.php

...al/field/Plugin/Type/Formatter/FormatterPluginManager.php

...b/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php

core/modules/image/lib/Drupal/image/ImageEffectManager.php

core/modules/tour/lib/Drupal/tour/TipPluginManager.php

...ules/views/lib/Drupal/views/Plugin/ViewsPluginManager.php