Comment 1 for bug 1932313

Looking at the build logs (https://launchpadlibrarian.net/543881602/buildlog_ubuntu-impish-amd64.breezy_3.2.0+bzr7543-1_BUILDING.txt.gz) I'm actually seeing a lot of issues regarding plugins.

test_plugins.TestDisablePlugin.test_partial_imports FAIL 4ms
    log: {{{
1138.617 loading plugins!
1138.618 using _Path('breezy.testingplugins', ['bad', 'ugly'], [], ['.'])
1138.618 Traceback (most recent call last):
  File "/<<BUILDDIR>>/breezy-3.2.0+bzr7543/breezy/plugin.py", line 429, in _load_plugin_module
    __import__(_MODULE_PREFIX + name)
ModuleNotFoundError: No module named 'breezy.testingplugins.good'

1138.618 Unable to load plugin 'good' from '.': No module named 'breezy.testingplugins.good'
 WARNING Unable to load plugin 'good' from '.': No module named 'breezy.testingplugins.good'
1138.619 removed breezy.testingplugins from sys.modules
1138.619 removed breezy.testingplugins.bad from sys.modules
1138.619 removed breezy.testingplugins.ugly from sys.modules
}}}

Traceback (most recent call last):
  File "/<<BUILDDIR>>/breezy-3.2.0+bzr7543/breezy/tests/test_plugins.py", line 718, in test_partial_imports
    self.assertEqual({'good'}, self.plugins.keys())
  File "/<<BUILDDIR>>/breezy-3.2.0+bzr7543/breezy/tests/__init__.py", line 1307, in assertEqual
    raise AssertionError("%snot equal:\na = %s\nb = %s\n"
AssertionError: not equal:
a = {'good'}
b = dict_keys([])