From 6adab5ba4dfa2c947239fff7758333a133c0e3e0 Mon Sep 17 00:00:00 2001
From: Don Syme <dsyme@users.noreply.github.com>
Date: Tue, 27 Sep 2022 00:20:14 +0100
Subject: [PATCH] Update illib.fs

See #13987
---
 src/Compiler/Utilities/illib.fs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Compiler/Utilities/illib.fs b/src/Compiler/Utilities/illib.fs
index 6eab1b08508..49cef8a36a9 100644
--- a/src/Compiler/Utilities/illib.fs
+++ b/src/Compiler/Utilities/illib.fs
@@ -610,7 +610,7 @@ module ResizeArray =
                     // * doing a block copy using `List.CopyTo(index, array, index, count)` (requires more copies to do the mapping)
                     // none are significantly better.
                     for i in 0 .. takeCount - 1 do
-                        holder[i] <- f items[i]
+                        holder[i] <- f items[startIndex + i]
 
                     yield holder
             |]