scikit-learn__scikit-learn-12585

clone fails for parameters that are estimator types

Verdict: the fix is stated in the issue (Tier A).

Change `base.py`, line 51 to: elif not hasattr(estimator, 'get_params') or isinstance(estimator, type):

The text states the fix: “Change `base.py`, line 51 to: elif not hasattr(estimator, 'get_params') or isinstance(estimator, type):”

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