Prevent a reference invalidation when wrapped with sample and checkpoint.

Prevents creating a new estimator when loading a sample-wrapped estimator with CheckpointWrapper (continuation of !82 (merged) which prevented the creation of a new estimator right "below").

This now checks if the estimator is wrapped with SampleWrapper and updates the estimator at that level.

Fixes bob.bio.gmm#30 (closed).

assigned to @ydayer

added 1 commit

• 2933d425 - [precommit] Fixes

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changed title from Prevent a copy when wrapped with sample and checkpoint. to Prevent a reference invalidation when wrapped with sample and checkpoint.

Can we do something like:

While hasattr(estimator, "estimator")
  Update the inner estimator
  Estimator = estimator.estimator

Of course. As long as the user class does not have an estimator attribute, it's fine.

added 1 commit

• 22f98128 - Update the innermost estimator however low it is.

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merged

mentioned in commit 3dea1cbb