[Enhance] Enhance compatibility of revert_sync_batchnorm

[HAOCHENYE]

Thanks for your contribution and we appreciate it a lot. The following instructions would make your pull request more healthy and more easily get feedback. If you do not understand some items, don't worry, just make the pull request and seek help from maintainers.

Motivation

Resolve #638

Modification

Please briefly describe what modification is made in this PR.

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repos?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects, like MMDet or MMCls.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[zytx121]

LGTM

[codecov]

Codecov Report

Base: 78.45% // Head: 78.67% // Increases project coverage by +0.21% 🎉

Coverage data is based on head (ab0e954) compared to base (bf369da).
Patch coverage: 88.06% of modified lines in pull request are covered.

❗ Current head ab0e954 differs from pull request most recent head bbb2c81. Consider uploading reports for the commit bbb2c81 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #695      +/-   ##
==========================================
+ Coverage   78.45%   78.67%   +0.21%     
==========================================
  Files         126      128       +2     
  Lines        9141     9341     +200     
  Branches     1818     1845      +27     
==========================================
+ Hits         7172     7349     +177     
- Misses       1656     1675      +19     
- Partials      313      317       +4     

Flag	Coverage Δ
unittests	78.67% <88.06%> (+0.21%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmengine/config/utils.py	58.49% <ø> (ø)
mmengine/dataset/base_dataset.py	98.00% <ø> (ø)
mmengine/hooks/ema_hook.py	93.33% <ø> (ø)
mmengine/hub/hub.py	25.71% <ø> (ø)
mmengine/optim/scheduler/lr_scheduler.py	100.00% <ø> (ø)
mmengine/optim/scheduler/momentum_scheduler.py	100.00% <ø> (ø)
mmengine/utils/__init__.py	100.00% <ø> (ø)
mmengine/hooks/checkpoint_hook.py	89.79% <25.00%> (-0.52%)	⬇️
mmengine/hooks/naive_visualization_hook.py	93.93% <50.00%> (-2.84%)	⬇️
mmengine/optim/optimizer/zero_optimizer.py	57.14% <57.14%> (ø)
... and 22 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.