From b5431c0343894795f69ffbfa29695b0d7e3c09d3 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Tue, 23 Jan 2024 11:14:10 -0500
Subject: [PATCH] Never mask original `KeyError` in portal-error unwrapper, for
 now?

---
 tractor/_portal.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tractor/_portal.py b/tractor/_portal.py
index 15c8cb50..fc094593 100644
--- a/tractor/_portal.py
+++ b/tractor/_portal.py
@@ -68,10 +68,10 @@ def _unwrap_msg(
     __tracebackhide__ = True
     try:
         return msg['return']
-    except KeyError:
+    except KeyError as ke:
         # internal error should never get here
         assert msg.get('cid'), "Received internal error at portal?"
-        raise unpack_error(msg, channel) from None
+        raise unpack_error(msg, channel) from ke
 
 
 class Portal: