Syndics don't receive list-targetted events for underlying minions when running on TCP transport

[lukasraska]

Description of Issue

When running syndic topology and TCP transport, syndics don't receive event for underlying minions, because it gets filtered by transport targetting

salt/salt/transport/tcp.py

Lines 1546 to 1558 in e43f211

	# add some targeting stuff for lists only (for now)
	if load['tgt_type'] == 'list':
	if isinstance(load['tgt'], six.string_types):
	# Fetch a list of minions that match
	_res = self.ckminions.check_minions(load['tgt'],
	tgt_type=load['tgt_type'])
	match_ids = _res['minions']
	log.debug("Publish Side Match: %s", match_ids)
	# Send list of miions thru so zmq can target them
	int_payload['topic_lst'] = match_ids
	else:
	int_payload['topic_lst'] = load['tgt']

Setup

MoM -> Syndic -> Minion setup, salt -L 'minion' test.ping job executed on MoM is never received by syndics

Steps to Reproduce Issue

Run salt -L 'minion' test.ping on MoM

Versions Report

Salt Version:
           Salt: 2019.2.2

Dependency Versions:
           cffi: 1.6.0
       cherrypy: unknown
       dateutil: 1.5
      docker-py: Not Installed
          gitdb: 0.6.4
      gitpython: 1.0.1
          ioflo: Not Installed
         Jinja2: 2.7.2
        libgit2: Not Installed
        libnacl: Not Installed
       M2Crypto: Not Installed
           Mako: Not Installed
   msgpack-pure: Not Installed
 msgpack-python: 0.5.6
   mysql-python: Not Installed
      pycparser: 2.14
       pycrypto: 2.6.1
   pycryptodome: Not Installed
         pygit2: Not Installed
         Python: 2.7.5 (default, Aug  7 2019, 00:51:29)
   python-gnupg: Not Installed
         PyYAML: 3.11
          PyZMQ: 15.3.0
           RAET: Not Installed
          smmap: 0.9.0
        timelib: Not Installed
        Tornado: 4.2.1
            ZMQ: 4.1.4

System Versions:
           dist: centos 7.7.1908 Core
         locale: UTF-8
        machine: x86_64
        release: 3.10.0-1062.1.2.el7.x86_64
         system: Linux
        version: CentOS Linux 7.7.1908 Core

[waynew]

Looks like this was fixed in #55607