diff --git a/a4/c051b870ac7f7b3c5482baf05600e1f6751b47 b/a4/c051b870ac7f7b3c5482baf05600e1f6751b47
new file mode 100644
index 0000000000..8db4b1c0b6
--- /dev/null
+++ b/a4/c051b870ac7f7b3c5482baf05600e1f6751b47
@@ -0,0 +1 @@
+Merged: https://github.com/ruby/ruby/pull/15094