From 3f4ea2c35b06f4537e1bfc10bf576ba03b88c9f6 Mon Sep 17 00:00:00 2001
From: Joe Rafaniello <jrafanie@redhat.com>
Date: Mon, 3 Feb 2020 14:36:14 -0500
Subject: [PATCH] Guard against hitting const_missing from within const_missing

If MiqAeServiceModelBase is not yet defined, we could hit const_missing
recursively, leading to a stack level too deep.

Fixes https://github.com/ManageIQ/manageiq/issues/19618
---
 lib/miq_automation_engine/engine/miq_ae_method_service.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/miq_automation_engine/engine/miq_ae_method_service.rb b/lib/miq_automation_engine/engine/miq_ae_method_service.rb
index e10c490a4..b0f668a1e 100644
--- a/lib/miq_automation_engine/engine/miq_ae_method_service.rb
+++ b/lib/miq_automation_engine/engine/miq_ae_method_service.rb
@@ -1,5 +1,7 @@
 module MiqAeMethodService
   def self.const_missing(name)
+    super unless defined?(MiqAeServiceModelBase)
+
     MiqAeServiceModelBase.create_service_model_from_name(name) || super
   end
 end