title: Fixtures are not working after Django squashmigrations
body: <p>I just squashed a lot of migrations in Django 4.0.x.
  Now when running the migrations I get the following error:</p>
  <pre><code>  File &quot;/opt/hostedtoolcache/Python/3.9.10/x64/lib/python3.9/site-packages/Django-4.0.3-py3.9.egg/django/db/migrations/loader.py&quot;, line 120, in load_disk
  
      migration_module = import_module(migration_path)
  
    File &quot;/opt/hostedtoolcache/Python/3.9.10/x64/lib/python3.9/importlib/__init__.py&quot;, line 127, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
  
    File &quot;&lt;frozen importlib._bootstrap&gt;&quot;, line 1030, in _gcd_import
    File &quot;&lt;frozen importlib._bootstrap&gt;&quot;, line 1007, in _find_and_load
    File &quot;&lt;frozen importlib._bootstrap&gt;&quot;, line 986, in _find_and_load_unlocked
    File &quot;&lt;frozen importlib._bootstrap&gt;&quot;, line 680, in _load_unlocked
    File &quot;&lt;frozen importlib._bootstrap_external&gt;&quot;, line 846, in exec_module
    File &quot;&lt;frozen importlib._bootstrap_external&gt;&quot;, line 983, in get_code
    File &quot;&lt;frozen importlib._bootstrap_external&gt;&quot;, line 913, in source_to_code
    File &quot;&lt;frozen importlib._bootstrap&gt;&quot;, line 228, in _call_with_frames_removed
    File &quot;/home/runner/work/backend/backend/general/migrations/0001_squashed_0019_merge_0018_auto_20220226_2311_0018_auto_20220228_2343.py&quot;, line 42
      code=general.migrations.0004_initial_general.Migration.load_data,
                                  ^
  SyntaxError: invalid decimal literal
  </code></pre>
  <p>The according code lines in the migration file is:</p>
  <pre><code>        migrations.RunPython(
              code=general.migrations.0004_initial_general.Migration.load_data,
          ),
  </code></pre>
  <p>I am totally lost here.</p>