render every partial with a new `PartialRenderer`.

This resolves issues when rendering nested partials.
Previously the `PartialRenderer` was reused which led to
situations where the state of the renderer was reset.

Closes #8197

1 files changed, 2 insertions, 2 deletions

diff --git a/actionpack/lib/action_view/renderer/renderer.rb b/actionpack/lib/action_view/renderer/renderer.rb
index bf1b5a7d22..dfef43bc9d 100644
--- a/actionpack/lib/action_view/renderer/renderer.rb
+++ b/actionpack/lib/action_view/renderer/renderer.rb
@@ -44,11 +44,11 @@ module ActionView
     private
 
     def _template_renderer #:nodoc:
-      @_template_renderer ||= TemplateRenderer.new(@lookup_context)
+      TemplateRenderer.new(@lookup_context)
     end
 
     def _partial_renderer #:nodoc:
-      @_partial_renderer ||= PartialRenderer.new(@lookup_context)
+      PartialRenderer.new(@lookup_context)
     end
   end
 end