Eval chat template

[krammnic]

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Changelog

What are the changes made in this PR?

• No chat template in evaluation #2459

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[pytorch-bot]

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[joecummings]

Can you provide a screenshot or (preferably) a test showing that this works as expected?

[krammnic]

@joecummings Hey! It will not be correct for most of the models, until #2723 will be merged.