Bug fix for the batched LM

[lpanaf]

For the current code, if some batches are rejected, they would be considered as converged in the following steps, since the error of those batch are not changed.

How Has This Been Tested

Types of changes

• [ ] Docs change / refactoring / dependency upgrade
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have completed my CLA (see CONTRIBUTING)
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[facebook-github-bot]

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[luisenp]

Hi @lpanaf. Thanks so much for catching this error and your contribution! Before merging, it looks like our lint checks are not passing. Would you mind installing the code style checks as explained in this document and using the command explained in the "Code Style" section? Thanks!