This PR closes#6518.
Just filtering null item from the `results` array makes thing work well.
## Description
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it fixes. Please also include relevant motivation and context. -->
- [x] I have read and understand the
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## Type of change
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- [x] Bug fix (non-breaking change which fixes an issue)
## Checklist:
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] Existing test suite passes locally with my changes
4892d96515