From 35b0c4bef0c9088fc7adfa4536c8e32cab3aec10 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 f310643..378f6a2 100644
--- a/tractor/_portal.py
+++ b/tractor/_portal.py
@@ -69,10 +69,10 @@ 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: