From 7e1ad860cd34420b797fd88b8e32e86d0595b36b Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Mon, 3 Mar 2025 12:19:11 -0500
Subject: [PATCH] Fix `roundtripped` ref error in `validate_payload_msg()`

---
 tractor/msg/_ops.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tractor/msg/_ops.py b/tractor/msg/_ops.py
index 2faadb9..615ad0c 100644
--- a/tractor/msg/_ops.py
+++ b/tractor/msg/_ops.py
@@ -796,6 +796,7 @@ def validate_payload_msg(
     __tracebackhide__: bool = hide_tb
     codec: MsgCodec = current_codec()
     msg_bytes: bytes = codec.encode(pld_msg)
+    roundtripped: Started|None = None
     try:
         roundtripped: Started = codec.decode(msg_bytes)
         ctx: Context = getattr(ipc, 'ctx', ipc)
@@ -832,9 +833,13 @@ def validate_payload_msg(
                 verb_header='Trying to send ',
                 is_invalid_payload=True,
             )
-        except BaseException:
+        except BaseException as _be:
+            if not roundtripped:
+                raise verr
+
+            be = _be
             __tracebackhide__: bool = False
-            raise
+            raise be
 
         if not raise_mte:
             return mte