Under the hood
Useful1 Signal1
Command-history matching can count entries by paging the storage layer, falling back to the old path.
What's wrong with this entry?
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What
When a storage backend is passed in, counting matching command-history entries pages records from it, handling both LF and CR-separated entries. It falls back to the previous counting path when no backend is available or the page budget runs out.
Evidence
readRecords
Strings lifted out of the shipped bundle, so the claim above can be checked against them.