[BUG] Problem with mine.get in state

Description
After upgrading to 3001 one of my states started to fail with "Jinja variable list object has no element 0"

Setup
I narrowed it down to a simple test:

{% for sourceHost, sourceIp in salt['mine.get']('*', 'network.ip_addrs', 'compound').items() %}
isList: {{ sourceIp | is_list }}
sourceIpList: {{ sourceIp }}
sourceIp: {{ sourceIp[0] }}
{% endfor %}

Running salt-call state.apply test:

[ERROR   ] Rendering exception occurred
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/salt/utils/templates.py", line 400, in render_jinja_tmpl
    output = template.render(**decoded_context)
  File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 989, in render
    return self.environment.handle_exception(exc_info, True)
  File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 754, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python3/dist-packages/jinja2/_compat.py", line 37, in reraise
    raise value.with_traceback(tb)
  File "<template>", line 4, in top-level template code
jinja2.exceptions.UndefinedError: list object has no element 0

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/salt/utils/templates.py", line 166, in render_tmpl
    output = render_str(tmplstr, context, tmplpath)
  File "/usr/lib/python3/dist-packages/salt/utils/templates.py", line 407, in render_jinja_tmpl
    raise SaltRenderError("Jinja variable {0}{1}".format(exc, out), buf=tmplstr)
salt.exceptions.SaltRenderError: Jinja variable list object has no element 0

Now if I replace '*' as target with a hostname I get the expected result:

{% for sourceHost, sourceIp in salt['mine.get']('asx-salt', 'network.ip_addrs', 'compound').items() %}
isList: {{ sourceIp | is_list }}
sourceIpList: {{ sourceIp }}
sourceIp: {{ sourceIp[0] }}
{% endfor %}

Running salt-call state.apply test
[DEBUG   ] Rendered data from file: /var/cache/salt/minion/files/base/test/init.sls:

isList: True
sourceIpList: ['10.133.45.67']
sourceIp: 10.133.45.67

Versions Report

Salt Version:
           Salt: 3001
 
Dependency Versions:
           cffi: Not Installed
       cherrypy: 3.5.0
       dateutil: 2.4.2
      docker-py: Not Installed
          gitdb: 0.6.4
      gitpython: 1.0.1
         Jinja2: 2.8
        libgit2: Not Installed
       M2Crypto: Not Installed
           Mako: Not Installed
   msgpack-pure: Not Installed
 msgpack-python: 0.6.2
   mysql-python: Not Installed
      pycparser: Not Installed
       pycrypto: 2.6.1
   pycryptodome: 3.4.7
         pygit2: Not Installed
         Python: 3.5.2 (default, Apr 16 2020, 17:47:17)
   python-gnupg: 0.3.8
         PyYAML: 3.11
          PyZMQ: 17.1.2
          smmap: 0.9.0
        timelib: 0.2.4
        Tornado: 4.5.3
            ZMQ: 4.1.4
 
System Versions:
           dist: ubuntu 16.04 Xenial Xerus
         locale: UTF-8
        machine: x86_64
        release: 4.4.0-166-generic
         system: Linux
        version: Ubuntu 16.04 Xenial Xerus

Additional context

Salt Version:
           Salt: 3001
 
Dependency Versions:
           cffi: Not Installed
       cherrypy: Not Installed
       dateutil: 2.4.2
      docker-py: Not Installed
          gitdb: Not Installed
      gitpython: Not Installed
         Jinja2: 2.8
        libgit2: Not Installed
       M2Crypto: Not Installed
           Mako: Not Installed
   msgpack-pure: Not Installed
 msgpack-python: 0.6.2
   mysql-python: Not Installed
      pycparser: Not Installed
       pycrypto: Not Installed
   pycryptodome: 3.4.7
         pygit2: Not Installed
         Python: 3.5.2 (default, Oct  8 2019, 13:06:37)
   python-gnupg: 0.3.8
         PyYAML: 3.11
          PyZMQ: 17.1.2
          smmap: Not Installed
        timelib: Not Installed
        Tornado: 4.5.3
            ZMQ: 4.1.4
 
System Versions:
           dist: ubuntu 16.04 Xenial Xerus
         locale: UTF-8
        machine: x86_64
        release: 4.4.0-169-generic
         system: Linux
        version: Ubuntu 16.04 Xenial Xerus

Start by reproducing the issue with the shown salt-call state.apply test command and compare salt['mine.get'] with '*' against the hostname target. Inspect the mine.get compound-target handling and verify that the wildcard result supports the same list indexing without the Jinja error.