fix: rollback set wrong min filtered number

[codecov-commenter]

Codecov Report

Base: 77.55% // Head: 77.55% // No change to project coverage :thumbsup:

Coverage data is based on head (ff553e6) compared to base (f892479). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #104 +/- ## ======================================== Coverage 77.55% 77.55% ======================================== Files 23 23 Lines 4630 4630 ======================================== Hits 3591 3591 Misses 1039 1039 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `77.55% <100.00%> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nervosnetwork#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/nervosnetwork/ckb-light-client/pull/104?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nervosnetwork) | Coverage Δ | | |---|---|---| | [src/protocols/light\_client/mod.rs](https://codecov.io/gh/nervosnetwork/ckb-light-client/pull/104/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nervosnetwork#diff-c3JjL3Byb3RvY29scy9saWdodF9jbGllbnQvbW9kLnJz) | `77.65% <ø> (ø)` | | | [src/storage.rs](https://codecov.io/gh/nervosnetwork/ckb-light-client/pull/104/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nervosnetwork#diff-c3JjL3N0b3JhZ2UucnM=) | `96.56% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nervosnetwork). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nervosnetwork)

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