materialize-mongodb: don't send a batch if there were 0 documents #2160
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Description:
When setting a
notBefore
configuration there will be transactions with 0 stored documents. This adds a condition to prevent a panic trying to send a batch in Store when there aren't any documents to store.Workflow steps:
(How does one use this feature, and how has it changed)
Documentation links affected:
(list any documentation links that you created, or existing ones that you've identified as needing updates, along with a brief description)
Notes for reviewers:
(anything that might help someone review this PR)
This change is