fix optional prefix iter #1615
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fix optional prefix iter #1615
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* origin/tomas/fix-optional-prefix-iter: changelog: add #1615 ledger/storage/rocksdb: refactor prefix iter code ledger/storage/rocksdb: fix iterator without prefix test/ledger/storage/rocksdb: add a test for prefix iter
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Based on v0.17.4
The optional prefix iter did nothing when given
Nonefor prefix as shown by the test added in 3bf41d5. The problem was with the upper bound set on the iterator that should only be set when there is a non empty prefix - fixed in 82a07d8. The same issue was already present before changes from #1478 on prefix iter with an empty key (i.e.Key::default()).This affects the rollback command that relies on the iterator with no prefix.