From ce1ba915732dfff88cd9e7d975060a2a2250cd72 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Tue, 16 May 2023 03:17:06 +0800
Subject: [PATCH] close #19990; adds a test case (#21853)

---
 tests/arc/tarc_orc.nim | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tests/arc/tarc_orc.nim b/tests/arc/tarc_orc.nim
index 981567350e..2fbb2e7921 100644
--- a/tests/arc/tarc_orc.nim
+++ b/tests/arc/tarc_orc.nim
@@ -45,3 +45,17 @@ proc main() = # todo bug with templates
     doAssert b() == @[]
 static: main()
 main()
+
+
+type Obj = tuple
+  value: int
+  arr: seq[int]
+
+proc bug(): seq[Obj] =
+  result.add (value: 0, arr: @[])
+  result[^1].value = 1
+  result[^1].arr.add 1
+
+# bug #19990
+let s = bug()
+doAssert s[0] == (value: 1, arr: @[1])