From 1b4875dc286f0194f75be0c425161fd1d1a8594c Mon Sep 17 00:00:00 2001
From: Charles Oliver Nutter <headius@headius.com>
Date: Fri, 3 Nov 2023 16:38:47 -0500
Subject: [PATCH] Invalidate replaced variable in case it has been cached

---
 .../main/java/org/jruby/internal/runtime/GlobalVariables.java    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/src/main/java/org/jruby/internal/runtime/GlobalVariables.java b/core/src/main/java/org/jruby/internal/runtime/GlobalVariables.java
index dfc5e24ac697..441e8784d26f 100644
--- a/core/src/main/java/org/jruby/internal/runtime/GlobalVariables.java
+++ b/core/src/main/java/org/jruby/internal/runtime/GlobalVariables.java
@@ -97,6 +97,7 @@ public void alias(String name, String oldName) {
             throw RaiseException.from(runtime, runtime.getRuntimeError(), "can't alias in tracer");
         }
 
+        variable.invalidate();
         globalVariables.put(name, oldVariable);
     }