`member = true` in options breaks.

[StefanBRas]

Describe the bug
if you set members = true in options (either global and local) it will break with a bool object is not iterable despite the docs saying that members can take a bool value. (https://mkdocstrings.github.io/python/usage/configuration/members/#members)

To Reproduce

1. set options.members = true
2. run mkdocs serve
3. get error

Expected behavior
That it will not break and simple render all members as the docs say.

System (please complete the following information):

• mkdocstrings-python version: 1.2.0
• Python version: 3.9.14
• OS: Ubuntu 22.04.1 LTS, on WSL2.

Additional context

Stacktrace

sras@BLS00CB:~/dev/mkdocstrings_bug$ poetry run mkdocs serve
INFO     -  Building documentation...
INFO     -  Cleaning site directory
> /home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/handler.py(314)render()
-> final_config["members_order"] = rendering.Order(final_config["members_order"])
(Pdb) c
ERROR    -  Error reading page 'api.md': 'bool' object is not iterable
Traceback (most recent call last):
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/bin/mkdocs", line 8, in <module>
    sys.exit(cli())
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocs/__main__.py", line 234, in serve_command
    serve.serve(dev_addr=dev_addr, livereload=livereload, watch=watch, **kwargs)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocs/commands/serve.py", line 83, in serve
    builder(config)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocs/commands/serve.py", line 76, in builder
    build(config, live_server=live_server, dirty=dirty)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocs/commands/build.py", line 308, in build
    _populate_page(file.page, config, files, dirty)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocs/commands/build.py", line 181, in _populate_page
    page.render(config, files)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocs/structure/pages.py", line 270, in render
    self.content = md.convert(self.markdown)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/markdown/core.py", line 264, in convert
    root = self.parser.parseDocument(self.lines).getroot()
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/markdown/blockparser.py", line 90, in parseDocument
    self.parseChunk(self.root, '\n'.join(lines))
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/markdown/blockparser.py", line 105, in parseChunk
    self.parseBlocks(parent, text.split('\n\n'))
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/markdown/blockparser.py", line 123, in parseBlocks
    if processor.run(parent, blocks) is not False:
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings/extension.py", line 127, in run
    html, handler, data = self._process_block(identifier, block, heading_level)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings/extension.py", line 213, in _process_block
    rendered = handler.render(data, options)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/handler.py", line 314, in render
    final_config["members_order"] = rendering.Order(final_config["members_order"])
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/jinja2/environment.py", line 1301, in render
    self.environment.handle_exception()
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/jinja2/environment.py", line 936, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/templates/material/module.html", line 1, in top-level template code
    {% extends "_base/module.html" %}
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/templates/material/_base/module.html", line 55, in top-level template code
    {% block contents scoped %}
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/templates/material/_base/module.html", line 62, in block 'contents'
    {% block children scoped %}
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/templates/material/_base/module.html", line 66, in block 'children'
    {% include "children.html" with context %}
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/templates/material/children.html", line 1, in top-level template code
    {% extends "_base/children.html" %}
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/templates/material/_base/children.html", line 53, in top-level template code
    {% for class in classes|order_members(config.members_order, members_list) %}
  File "/home/sras/.cache/pypoetry/virtualenvs/mkdocstrings-bug-ubRBav-y-py3.9/lib/python3.9/site-packages/mkdocstrings_handlers/python/rendering.py", line 127, in do_order_members
    for name in members_list:
TypeError: 'bool' object is not iterable

I know that it is the same as simple not setting the members option, I was just trying options because I wanted to see if I could make re-exported modules from X import y as y be rendered.

It happens here but I wasn't sure if you want to parse true to [] before we hit this or just guard against it in the function itself.

[pawamoy]

Thanks! Fixed in v1.2.1 🙂