# HG changeset patch
# User Marcin Kuzminski <marcin@rhodecode.com>
# Date 2019-03-05 09:13:26
# Node ID 93babdbb134ed629d081c54c91edbc54dc12e652
# Parent  377e31e9f570aba314e82379cc1c7d6bdb3e2ec0

Mercurial: errors, properly expose lookup exceptions traceback.

diff --git a/vcsserver/exceptions.py b/vcsserver/exceptions.py
--- a/vcsserver/exceptions.py
+++ b/vcsserver/exceptions.py
@@ -37,7 +37,7 @@ def _make_exception(kind, org_exc, *args
     exc = Exception(*args)
     exc._vcs_kind = kind
     exc._org_exc = org_exc
-    exc._org_exc_tb = ''
+    exc._org_exc_tb = getattr(org_exc, '_org_exc_tb', '')
     return exc