multiprocessing.Server swallows original exception traceback

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-07-11.15:20:31.789>
labels = ['3.8', 'type-feature', 'library']
title = 'multiprocessing.Server swallows original exception traceback'
updated_at = <Date 2019-03-25.22:49:56.880>
user = 'https://github.com/gsalgado'

bugs.python.org fields:

activity = <Date 2019-03-25.22:49:56.880>
actor = 'cheryl.sabella'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2018-07-11.15:20:31.789>
creator = 'salgado'
dependencies = []
files = []
hgrepos = []
issue_num = 34098
keywords = ['patch']
message_count = 1.0
messages = ['321480']
nosy_count = 3.0
nosy_names = ['pitrou', 'salgado', 'davin']
pr_nums = ['8254']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue34098'
versions = ['Python 3.8']