From 1c372fbf3257a6cc2bb8697ed53fefd00dca365c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nguy=E1=BB=85n=20Gia=20Phong?= <cnx@loang.net>
Date: Wed, 5 Nov 2025 16:42:12 +0900
Subject: [PATCH] Keep dobytes' error string

The reason for failure would be more useful
than the most recently evaluated value.
---
 src/core/run.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/run.c b/src/core/run.c
index b6a78847..da7e5260 100644
--- a/src/core/run.c
+++ b/src/core/run.c
@@ -122,7 +122,8 @@ int janet_dobytes(JanetTable *env, const uint8_t *bytes, int32_t len, const char
         janet_loop();
         if (fiber) {
             janet_gcunroot(janet_wrap_fiber(fiber));
-            ret = fiber->last_value;
+            if (!errflags)
+                ret = fiber->last_value;
         }
     }
 #endif