Bugzilla

```
** Unknown exception encountered with possibly-broken third-party extension "configwizard" (version N/A)
** which supports versions 5.3 of Mercurial.
** Please disable "configwizard" and try your action again.
** If that fixes the bug please report it to https://bugzilla.mozilla.org/enter_bug.cgi?product=Developer%20Services&component=Mercurial%3A%20configwizard
** Python 3.9.10 (tags/v3.9.10:f2f3f53, Jan 17 2022, 15:14:21) [MSC v.1929 64 bit (AMD64)]
** Mercurial Distributed SCM (version 6.2.3)
** Extensions loaded: blackbox, configwizard, extdiff, fsmonitor, strip
Traceback (most recent call last):
  File "C:\moz\mozilla-build\python3\Scripts\hg", line 59, in <module>
    dispatch.run()
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 143, in run
    status = dispatch(req)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 232, in dispatch
    status = _rundispatch(req)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 276, in _rundispatch
    ret = _runcatch(req) or 0
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 451, in _runcatch
    return _callcatch(ui, _runcatchfunc)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 461, in _callcatch
    return scmutil.callcatch(ui, func)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\scmutil.py", line 153, in callcatch
    return func()
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 441, in _runcatchfunc
    return _dispatch(req)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 1254, in _dispatch
    return runcommand(
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 899, in runcommand
    ret = _runcommand(ui, options, cmd, d)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 1266, in _runcommand
    return cmdfunc()
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 1252, in <lambda>
    d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\util.py", line 1880, in check
    return func(*args, **kwargs)
  File "C:/Users/cmartin/.mozbuild/version-control-tools/hgext\configwizard\__init__.py", line 492, in configwizard
    cw = configobjwrapper(path)
  File "C:/Users/cmartin/.mozbuild/version-control-tools/hgext\configwizard\__init__.py", line 1318, in __init__
    self.c = ConfigObj(infile=lines, encoding='utf-8',
  File "C:\Users\cmartin\.mozbuild\version-control-tools\pylib\configobj\configobj.py", line 1207, in __init__
    self._load(infile, configspec)
  File "C:\Users\cmartin\.mozbuild\version-control-tools\pylib\configobj\configobj.py", line 1304, in _load
    raise error
configobj.ParseError: Parse error in value at line 4.
```

I newly-updated mozilla-build, purged everything, and typed `./mach bootstrap`. Received this when asked to setup Mercurial:

```
** Unknown exception encountered with possibly-broken third-party extension "configwizard" (version N/A)
** which supports versions 5.3 of Mercurial.
** Please disable "configwizard" and try your action again.
** If that fixes the bug please report it to https://bugzilla.mozilla.org/enter_bug.cgi?product=Developer%20Services&component=Mercurial%3A%20configwizard
** Python 3.9.10 (tags/v3.9.10:f2f3f53, Jan 17 2022, 15:14:21) [MSC v.1929 64 bit (AMD64)]
** Mercurial Distributed SCM (version 6.2.3)
** Extensions loaded: blackbox, configwizard, extdiff, fsmonitor, strip
Traceback (most recent call last):
  File "C:\moz\mozilla-build\python3\Scripts\hg", line 59, in <module>
    dispatch.run()
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 143, in run
    status = dispatch(req)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 232, in dispatch
    status = _rundispatch(req)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 276, in _rundispatch
    ret = _runcatch(req) or 0
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 451, in _runcatch
    return _callcatch(ui, _runcatchfunc)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 461, in _callcatch
    return scmutil.callcatch(ui, func)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\scmutil.py", line 153, in callcatch
    return func()
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 441, in _runcatchfunc
    return _dispatch(req)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 1254, in _dispatch
    return runcommand(
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 899, in runcommand
    ret = _runcommand(ui, options, cmd, d)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 1266, in _runcommand
    return cmdfunc()
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\dispatch.py", line 1252, in <lambda>
    d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
  File "C:\moz\mozilla-build\python3\lib\site-packages\mercurial\util.py", line 1880, in check
    return func(*args, **kwargs)
  File "C:/Users/cmartin/.mozbuild/version-control-tools/hgext\configwizard\__init__.py", line 492, in configwizard
    cw = configobjwrapper(path)
  File "C:/Users/cmartin/.mozbuild/version-control-tools/hgext\configwizard\__init__.py", line 1318, in __init__
    self.c = ConfigObj(infile=lines, encoding='utf-8',
  File "C:\Users\cmartin\.mozbuild\version-control-tools\pylib\configobj\configobj.py", line 1207, in __init__
    self._load(infile, configspec)
  File "C:\Users\cmartin\.mozbuild\version-control-tools\pylib\configobj\configobj.py", line 1304, in _load
    raise error
configobj.ParseError: Parse error in value at line 4.
```