Handle long answer needs to be updated.
Author: Narsil
Pull request: yes

`start_` and `end_` tensors now contain a batch_size at this point.


# What does this PR do?

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Fixes # (issue)


## Before submitting
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Comments:
Is there a specific reason why this fix is not reflected in the latest release (v4.12.5)? @LysandreJik