Fix delayed attributes

Delayed attributes are no longer loaded when _copy_attributes is called to create a DelayedSample.

• When copying from a DelayedSample parent to a new DelayedSample, the delayed_attributes should stay delayed.
• When copying from a DelayedSample to a new Sample, the delayed_attributes functions are called and the corresponding attributes are assigned.
• When copying from a DelayedSample to any SampleSet, the delayed_attributes are dropped.

assigned to @amohammadi and unassigned @ydayer

added 2 commits

• bf16514d - Move delayed_attribute fix to DelayedSample init.
• edc9e508 - Fix delayed_attributes being loaded into SampleSet

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@ydayer could you please also add some tests?

@ydayer any feedback on this?

added 2 commits

• b0454c18 - Remove the Sampleset exception in copy_attributes.
• e07effe6 - Added delayed_attributes tests

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added 1 commit

• 22487ed7 - flake8

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resolved all threads

merged

mentioned in commit e320416b

thank you.

mentioned in merge request bob.bio.base!257 (closed)

Thanks for this feature :-)

mentioned in issue bob#269 (closed)