From d597d7a8b6e753cfe40b8470c770f744adde5d4f Mon Sep 17 00:00:00 2001
From: Yale Kozinski <ytk@kozinski.com>
Date: Mon, 23 Nov 2020 01:17:06 -0800
Subject: [PATCH] Fixing glitchy kill ring behavior in irb See
 https://github.com/ruby/irb/issues/85 for details

---
 lib/reline/line_editor.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index df4903c9c4..65878fe9f3 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -183,7 +183,7 @@ class Reline::LineEditor
     @cleared = false
     @rerender_all = false
     @history_pointer = nil
-    @kill_ring = Reline::KillRing.new
+    @kill_ring ||= Reline::KillRing.new
     @vi_clipboard = ''
     @vi_arg = nil
     @waiting_proc = nil