From c73c88173f059950aae43e4b87760fa0a3c13488 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Thu, 8 Jan 2026 17:21:06 +0800
Subject: [PATCH] fixes

---
 compiler/injectdestructors.nim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/compiler/injectdestructors.nim b/compiler/injectdestructors.nim
index 3013b1e0b6..0760289526 100644
--- a/compiler/injectdestructors.nim
+++ b/compiler/injectdestructors.nim
@@ -354,6 +354,9 @@ proc genCopyNoCheck(c: var Con; dest, ri: PNode; a: TTypeAttachedOp): PNode =
   assert ri.typ != nil
 
 proc genCopy(c: var Con; dest, ri: PNode; flags: set[MoveOrCopyFlag]): PNode =
+  if c.graph.config.selectedGC == gcRefc and dest.typ.skipTypes({tyGenericInst, tyAlias, tySink}).kind == tyString:
+    result = newAsgnStmt(dest, ri)
+    return
   if c.inEnsureMove > 0:
     localError(c.graph.config, ri.info, errFailedMove, "cannot move '" & $ri &
                                                       "', which introduces an implicit copy")